Just got one of these off eBay, and couldn't be much happier with it - my min FPS have pretty much doubled across the board, and tripled in some cases. Coming from a 650 (non-Ti), this comes for less power and
a slightly tidier rig - I can hide the 6-pin round the back, now. I kicked it in the bollocks for an hour with a maxed-out Heaven, but I couldn't make it go over 48 degrees or minimum fan speed. Cushty
Downers? Well, mine has a very slight cap squeal/rattle when it's under load (and when I turn vsync off and get 200+ FPS, it gets a bit louder), but the game sound and/or Winamp music will drown it out. Also, the heatsink, while effective and gorgeous, is completely unnecessary - I had to move two of my SATA drives to different ports to make room; couldn't they have fit it on a small form-factor PCB?
I currently game at 16*10, but I think a move to full HD would now be feasible.