Or even this year's BTO 3.4GHz i7 model? I currently have a 2009 Mac Pro. I do a little gaming (Sims3, X-Plane 9, maybe Portal 2), and some 3D rendering (Bryce 7 Pro, Poser 2010). I know 1GB of RAM will help overcome an error Photoshop gives me when using pixelbender effects beyond a certain size (8.5x11 @ 300DPI is the maximum I can use with the 4870 w/512MB RAM.) But I've been eyeballing the latest iMacs for purchase late this year, if not purchasing a replacement Mac in 2012. Should I upgrade now or wait for next year?