Mac Guys out there using their macs for video editing. i need advice on which 21.5 iMac to get and what config's the best to go. i basically use my mac for video editing. can say that i'm enthusiast in it. apps i use such as fcs, adobe after effects, premiere. my max budget would be ATI 1TB 21.5 imac. i want a smoother editing process, plus faster rendering. besides maxing out the ram. i wonder if the 3.33Ghz processor is much more efficient wise than the ATI graphics card in terms of editing and rendering speed? In my case, it's either i grab the Graphics or the base iMac opted for 3.33ghz. any HD editors out there to give me some advice? thanks in advance.