Right now I have a black plastic macbook 2.2 GHz Core 2 Duo, 4 GB ram and the Intel GMA X3100 graphics card. So its not the most powerful computer. I need so advice on what should be my next computer. Right now I'm trying to decide between getting the 27inch i7 top of the line iMac or waiting for the quadcore Macbook Pros and getting one of those in the 13inch. I do have an external display so screen size is no issue. The Macbook I have right now does all the basics well but I would really like a more powerful machine. I don't need a Mac Pro though. Thanks for any help.