So i put my gtx560ti on sale, and a dude is willing to give me 160$ for it, now, should i just keep and eventually wait for the Gtx700/Radeon8000 series, or upgrade? I've looked on some cards and I think I'll buy the XfX Radeon HD 7870 Twincooler. Is that a good idea? Overall I'll pay a little under 100 bucks for the upgrade. Any advise is appreciated! (My budget is 3000$, but im not gonna buy a gtx690 or Ares II, just because it's the best! A price around 200-400 is what im thinking of.)