Re: Convince me to buy a GTX 260
What you have there now isn't bad at all. Unless you desperately want SLI or Crossfire, there's no real need to upgrade your board. Based on what you have now, the GTX 260 would be a good choice. With it, the rest of your system would easily last another 2 years. My board has the same chipset, and the GTX 280 runs great on it. I've thought about upgrading right now, but I'm going to wait for Nehalem instead.
BTW, PM me your e-mail address.