Hi. ok personaly i think that computers are a waste of money, i mean i still use them for gaming but technology is advancing everyday so what ever cpu you buy today will be outdated by abetter one tommorow (figure of speech) but you know what i mean. and core i7 is a waste of money in my opinion becuase you can buy a core 2 duo extreme wich is just as good and twice as cheap. my advice is would be a intel core 2 duo e8200. it has 6mb l2 cache, 1333mh fsb, 2 cores, 2.66GHz , intel virtualization technology, 64bit capability, intel trusted execution technology and execute disable bit. wich would be great for new games such as gta 4, crysis ect.... for a cheap price and good performance. but its not all about the cpu, i have seen gta 4 max settings on a celeron d 2.4GHz with 4gb ram and a hd radeon 5970 running at a decent frame rate, my guess was about 45 fps average. so it all comes down to ram and gpu more than any thing, i mean a good cpu is great but it dosent mean everything when it comes to gaming. and sorry about the long reply i got carried away i like to help people out with this stuff so they are not wasting there money on something that isnt worth it. but its your choice and how much your willing to pay. and by the way thats the cpu i have a e8200 and a ati 4750 1gb, 3gb ram windows 7 home and games run great.
anyway hope iv helped you out, any more questions just email me, kylewonder44@hotmail.com