My current setup:
Intel Core2Duo E6400 - OC'd to around 2.4GHz not a lot I know, but I don't have the hardware to go any higher.
3GB DDR2 RAM clocked at around 750MHz (its 667MHz stock)
ATI Radeon HD 4550. Currently it's stock, but I'm looking into OCing that too.
I plan to get liquid cooling and a better processor too and OC it to around 3.5GHz or more. I also plan to get one of
these and some DDR3 RAM (looking at
this hopefully I can afford 4 of those sticks

) and OC all that ofc
BASIC programmers never die, they GOSUB and don't RETURN.