I'm buying a mac pro in the next few weeks and I was looking on Crucial UK's website, I was having a bit of trouble locating the Mac Pro so I ended up looking at Xserve RAM first, which is also FB-DIMM/PC-5300. Get a load of this: Mac Pro Page vs Xserve. On 2x1GB for a more mac-pro like heat spreader, and no other difference (keep in mind the Xserve ones still have a heatsink) they're charging an extra £70(About$140US)! Any reason not to go with the otherwise identical XServe DIMMS? On a side note, where is the best place to buy Mac Pro RAM in the UK?