Able Planet Clear Harmony Noise-Canceling Headphones for $49 + free shipping

BuyDig offers the Able Planet NC600 Clear Harmony Active Noise-Canceling Headphones, model no. NC600, for $98. Coupon code “POWER50″ cuts them to $49. With free shipping, that’s tied with last week’s mention and the lowest total price we could find by $21. They feature LINX Audio, SRS WOW 3D surround sound, on-ear volume control, 20Hz to 20kHz frequency response, and more.

LG 50″ 600Hz 720p Widescreen Plasma HDTV for $500 + free shipping

TigerDirect offers the LG 50″ 600Hz 720p Widescreen Plasma HD Television, model no. 50PA4500, for $499.99 with free shipping. That’s tied with our mention from two weeks ago and the lowest total price we could find now by $49. It features a native resolution of 1024×768 (720p), 600Hz sub-field drive, 3,000,000:1 dynamic contrast ratio, USB connectivity, two HDMI inputs, and VGA and other video inputs.

Refurb Seagate 500GB SATA 3Gbps Internal Hard Drive for $50 + free shipping

mwave offers the refurbished Seagate Barracuda 7200.9 500GB Serial ATA 3Gb/s 3.5″ Internal Hard Drive, model no. ST3500641AS, for $49.99 with free shipping ($0.10/GB). That’s $25 under the lowest total price we could find for a new one. (It’s also the least expensive 500GB internal hard drive we’ve seen this year.) It features a 16MB cache and runs at 7200 rpm.

Note: A 60-day warranty applies, although it’s unclear who supports it.

HHI ReElegant Smart Companion Case w/ Lock for New iPad from $10 + $3 s&h

HandHeldItems again offers the HHI ReElegant Smart Cover Partner Companion Case with Lock for the New iPad in 11 colors (Frost Orange Transparent pictured) with a $2 HHI Credit for $12.99. Coupon code “LOCKIPAD3SMART” cuts it to $9.99. With $2.85 for shipping, that’s $3 off and tied with our mention from three weeks ago as the lowest total price we could find for a new iPad case with a Smart Cover lock. It features an anchor lock that locks the magnetic strip from the Apple Smart Cover (sold separately) to the case and iPad.

PC Micro Store coupon: $5 off $15 on tablet accessories

PC Micro Store cuts $5 off tablet accessory purchases of $15 or more via coupon code “5OFFTABLET”. Combined with free shipping on most orders, that’s tied with our mention from two weeks ago as the best dollar-off discount we’ve seen on these items from PC Micro Store. This sale includes accessories for the Apple iPad, iPad 2, the new iPad, BlackBerry PlayBook, Motorola XOOM, and Samsung Galaxy Tab. Coupon expires after 1,000 uses.

Refurb Western Digital 2TB USB 3.0 Hard Drive for $100 + free shipping

Western Digital offers the factory-refurbished Western Digital 2TB My Book Essential USB 3.0 External Hard Drive, model no. WDBAAF0020HBK-NESN, for $99.99 with free shipping ($0.05/GB). That’s $42 under the lowest total price we could find for a new one, although we saw a similar refurb for $5 less in April. This drive is purported to run 3x faster than a similar USB 2.0 device when connected to a USB 3.0 port. It also features password protection with hardware encryption. A 6-month Western Digital warranty applies.

Refurb Western Digital 320GB Portable USB 3.0 Hard Drive for $50 + $3 s&h

Western Digital offers its factory-refurbished Western Digital My Passport Essential 320GB 2.5″ Portable USB 3.0 External Hard Drive in Black, model no. WDBACY3200ABK-NESN, for $49.99 plus $2.99 for shipping ($0.17/GB). That’s $19 under the lowest total price we could find for another refurb, although we saw it for $12 less last fall. It features an 8MB cache, maximum data transfer rate of 5Gb/s, and backward compatibility with USB 2.0. A 6-month Western Digital warranty applies.

OWC’s Garage Sale: RAM, accessories, HDDs, computers, more

Other World Computing continues to discount select clearance items as part of its Garage Sale. (Items are removed from the page when they’re sold out.) Shipping starts at $1.99. Note that most items are available in very limited quantities. Some best bets:

Samsung 16MP WiFi Camera w/ 4GB microSD, case for $139 + free shipping

BuyDig offers the Samsung DualView DV300F 16MP WiFi Digital Camera in Black (pictured) with a 4GB microSD Card, DigPro Deluxe Digital Camera Case, 3-Piece Lens Cleaning Kit, and Microfiber Cleaning Cloth for $139 with free shipping. That’s $5 under last week’s mention and $17 under the lowest total price we could find for a comparable bundle elsewhere. Features include a 1.5″ front-facing LCD, 3″ rear LCD, 5x optical zoom, 720p video capture at 30fps, WiFi connectivity, optical image stabilization, face detection, microSD card slot, and more.

4 Linkyo HP Q2612A Compatible Toner Cartridges for $27 + free shipping, more

SuperMediaStore offers the Linkyo HP Q2612A Compatible Toner Cartridge in Black for $22.99. Better yet, buy three for $89.97 (a fourth cartridge will also be added to your cart for free) and coupon code “GADWAC” cuts them to $26.97. With free shipping, that’s $6.74 per unit, $7 under our January mention of a single cartridge, and the lowest total price we could find for four today by $11. Each yields 2,000 pages and is compatible with HP 1010, 1012, 1018, 1020, 1022, and 3050 printers.

Of note, you can also buy six cartridges (which adds two free toners to your cart, for eight total) for $125.94 before the coupon above, $47.94 after. With free shipping, that’s $5.99 per unit and another price low, this time by $28.