I currently own a original mid-range 1.8 GHz G5 tower with 2 GB RAM. I bought it new with Applecare back in 2003. I mainly use it for 3-D, Illustrator, photo and some hobby video work. I do use it for professional work, but I have noticed it is lagging lately. This is especially evident when compared to the 8 core Mac Pro I am using at work. I'm looking into buying an iMac 2.93GHz. with 120GT video card and Applecare. I know I am giving up some speed in 3-D but Photoshop should run just as fast as a Mac Pro and that sounds good to me. Has anyone out there bought an iMac to replace an old tower mac or chose an iMac over a Mac Pro? I was also wondering if anyone is using their iMacs for some pro work?