Hi! I am need to know what brands of memory I can trust. I plan on buying a Rambus 512 MB module, Non ECC, 800 Mhz (is that the fastest?). Price is not the main consideration, above all I want reliability, performance and quality. Looking at Tom's Price Grabber, I am seeing these manufacturers: Memory Upgrades, SimpleTech, Viking, Kingston, Corsair, Edge Memory, Axiom, VisionTek, Compaq and Smart Modular. I am sure some of these options are proprietary, though the blurb didn't mention it. Thanks much!