I have a 20 inch imac that I bought about 2 years ago. The processor is a 2.4 GHz intel core 2 duo. and the memory is 1 GB 800 MHz DDR2 SDRAM. I am wanting to try and sell this and buy new 13" macbook pro, the 2.4GHz model with 4 GB Ram. I want to get this now because I do alot of video editing for action sports using Final Cut Pro, now getting into Adobe Premiere, but I am driving alot and would like to have a MBP to bring with me now. I want to know though, how much of a performance difference would I see using this for Final Cut Pro and Adobe Premiere?