I have had a quick look online but you lot are more techy than me. I have been waiting for a while now for the new iMac's to come out and during this waiting it has made me wonder whether I should get a Mac at all, I play a lot of games (mainly on 360) and would like to play more on the PC. I know that the base iMacs atm can handle Skyrim and Battlefield but I'm thinking now that if I get a PC I can do all the stuff I can do on an iMac on a PC plus have the upgradability with graphics cards. The only problem there is I have never built a PC before and I kinow if I want a "gaming computer" it is best to build it myself to get more value for money, but I do want an iMac, so my main question is.... Are there such things as external graphics cards, for example through Thunderbolt or not? Would be interesting to know, and it would swing me back to the apple side of my decision.