Bang Bus Videos Free For All You Hardcore PC Gamers Out There Which Would You Choose?

For all you hardcore PC gamers out there which would you choose? - bang bus videos free

Currently I'm saving to my computer upgrade to play some games already high retail, but also better.

My current system is:

Win XP Pro
4 GB of PC6400 DDR2 RAM
ASUS P5B Deluxe Mobo
3.4 GHz Pentium D CPU
ATI Radeon HD 2600 XT 512MB graphics card
(Bus 128-bit, 850 mghz fundamental frequency, 1.2 GHz
Memory Clock)

I think the assignment to a Core 2 Duo 3.0 GHz or ATI Radeon 3870 graphics card. Both cost about the same. The new graphics card) is the new connection bandwidth of PCIe 2.0 bus and a 256-bit (the same memory as well. Other specifications of the card are in the vicinity of what we have in the current graphics card. So, what do you think? What am I to me the biggest bang for my money in terms of best performance (fps) for PC games?