So I've decided to add a new graphics card to my Early 2008 (3,1) Mac Pro (2x2.8Ghz, 10GB ram, 8800GT) and am hoping for some recommendations on a graphics card. I've been reading the forum for the last while and I thought I had my head around things, but once I actually started looking at the cards out there, the variety of cards from the different manufacturers and the 6 vs 8 pin connections and TDW got me confused again! So I thought I'd ask the experts for their thoughts I am looking for a graphics card to run 2 - 27" 2560x1440 displays (using DVI or displayport) and a 23" 1920x1080 (preferably in portrait orientation, using either HDMI or Displayport). I'm running 10.9.1, don't dual boot to Windows or do any gaming, just a bit of Lightroom. I'm not worried about having the boot screen as I'll hang on to the 8800GT in case I need to swap it in for debugging purposes (but if I can flash the new card easily from OSX, I might consider it.) Looking to spend around $300, but would be fine with less Thanks for your time!