Well my friend he knows a lot bout computers and he helped me and well i need to know if this is good gaming computer and if anything needs to be change. I also have windows xp 62 bit and I the windows 7 64bit but i know which one i should get.
Look at this.
i3 2100 $125
Sapphire 6850 $150
HITACHI HDS721050CLA362 (0F10381) 500GB 7200 RPM SATA 3.0Gb/s 3.5" $70
Kingston HyperX 1333 8GB(2x4gb) $40
RAIDMAX Blade ATX-298WW Black / White Steel / Plastic ATX Mid Tower Computer Case $50
Antec ECO 620w $60
LITE-ON Black SATA DVD-ROM Drive Model iHDS118-04 $19
Biostar H61MGC $50
If you look at previous SBMs, esp if you plan on OCing, the i3 can't keep up with the Phenoms x4s in the budget ranges. I know you'll say "but this leaves room to upgrade to an i5..." - true, it does. For an extra $200. And it won't take IB (Z68 can, not H61).
Hey, i thought this was gaming, he said nothing about OCing. Right now the i3 2100 rocks most Phenom x4s gaming wise(besides 980 and 975). But because of budget problems, he cant really go with Z68 boards.
That is not worth it plus you lose the whole first time computer building experience. I wouldn't use a 430w PSU for a 6870 or the GTX 460 and an i5-2400S even tho the i5 is a low power CPU you would want at least a 600W PSU. Plus HP = Garbage quality in my opinion.
A couple posts up a guy made an Intel build with an i3 2100, which is actually a very good PC with better upgrade paths then AMD even for being a dual core. Also I don't agree with you on running the i5 and those GPU choices on a 430w PSU. It would be under a lot of stress.