Hello, I'm suggesting some parts for a friend of mine who wants a new pc and looking at ram, I have a few choices but I cant decide which would be better. first choice is PNY XLR8 Dual Channel 2048MB PC6400 DDR2 800MHz Memory this stuff advertises 3-4-4-8 the cas 3 looks really sweet. Second choice is OCZ FlexXLC Edition Dual Channel 2048MB PC6400 DDR2 800MHz which runs at 3-4-4-15 again cas 3 but a brand name that I like a bit better. Third choice is OCZ Titanium Dual Channel 2048MB PC6400 DDR2 800MHz running at 4-4-4-15 but with 1t timings. I assume that the first two are at 2t so I'm not sure if the lower cas is better or if 1t over 2t with the higher cas is better. can anyone offer any input on that?