Hey guys, I just inherited a MacPro 1,1 (2x2.66 dual-core, 4gb RAM, X1900) and I had a question regarding the best place to get memory for this rig... I do a lot of rendering in v-ray while I'm at school and I plan on using the MP primarily for that purpose, a sort of rendering hog if you will- It doesn't need to be blazing fast, it just needs to be able to render efficiently while I work on other tasks on my MBP. I am already planning on upgrading to the Quad-core Xeon 5355s, doing the EFI upgrade (1,1 to 2,1) for the processor support, etc. The second thing I want to upgrade is the memory- The two options I'm seeing are as follows: 1) buy 8gb from OWC, pop those suckers in there for a total of 12gb (4x1gb, 4x2gb) spending about $215. (Will this seriously affect any the system, mixing 1gb and 2gb sticks?) 2) Purchasing a kit like this: 16gb - 8x2gb (eBay), spending just about the same amount of money upfront and then trading in the old 4gb and making some small change. My question: Do any of you have experience buying a kit like the one listed above from eBay? It seems like a good deal, I would spend twice that on a 16gb kit from somewhere else and I'm not looking to break the bank, this is a MP 1,1 I'm upgrading after all. I'm just looking to put in a little $$ to create a situation where I can efficiently multi-task on project deadlines for the next two years or so. Thanks!