Trans Intl. offers this 4GB (2x2GB) PC5300 DDR2 667Mhz ECC FB-DIMM RAM Kit with two 2GB ECC FB-DIMMs for $78. (Scroll down to “Click for prices and options” to find it.) With $8 for shipping, it’s a $20 drop from our December mention and the lowest total price we could find for a similar 4GB kit by $15. This RAM is for the Mac Pro desktop (2006-2007) and features heatsinks and a lifetime warranty.