ok, the truth is you DON'T need matched sticks, their somewhat likely not to be compatable, but your paying a LARGE premium for that, i purchased 2 non matched sticks and are fine. The other thing is the dual DDR only works with PC3200! 2700 won't cut it, but you probably won't notice a huge difference between the 2 speeds anyway. If you do get a 2500+, go for the 2700 cas2 ram, also the same if your getting a 2100+ and overclocking the fsb on the thing. If your going to get a 2200+ or below and not overclocking it, your not going to get a huge improvement with the ram -_-
"What kind of idiot are you?"
"I don't know, what kinds are there?"