I am starting a small production company and I need a new mac. I have choice of 24" iMac (2.66 GHz, 650 GB HD and 4GB RAM) or a 15" Macbook Pro (2.4GHz, 250 GB and 2 GB) all are current gen. and I don't with the exact model of GPUs in them. All I need is a mac the will do Adobe Production CS4. I like the portability of the Macbook Pro and the screen of the iMac. I can't get a extra monitor but I will have a 500 GB external HD. But downsides of each are iMac not portable, can't change the HD yourself and downsides of Macbook Pro are the screen and only 2 GB of RAM (I am willing to upgrade at a later time). Thanks you guys, Thomas Mahaffey