Jackshutty :
He's selling it because they have upgraded and is the any other amd processor out there that won't bottleneck my gpu
I have a couple of 7 year old overclocked PCs which still run great, but I didn't get too greedy with the overclock....
Trouble is, you don't know how honest your seller is... if you could stress test the parts before buying them, then that would be OK.
As for AMD, there is no realistic upgrade path. You have 6 cores, which is more than enough, games use 4 or less. But each AMD core is very inefficient, and therefore slow compared with Intel. The cores in an 8350 are still just as inefficient, but you now have 8 of them. This doesn't really help for gaming....