You see, I'm going to be in the market for a Mac Pro (I want a Mac again) and I want something comparable to the Dell system in my sig. My uncle bought a PowerMac G5 Dual 2.7 CPU something like 4 or 5 years ago for photo and video stuff. My question is that if I get a Mac Pro (the 2149 refurb model) would it last a while? See I'm always in the rut of buying and selling computers and I want my next purchase to last a long time so I can put an end to that. I don't do any heavy editing with Final Cut or any graphical stuff with Motion or After Effects. I do use iMovie and Lightroom and Photoshop, with iDVD and all the other iLife apps built-in there. The main reason for the Mac Pro is because I can always add hard drive space internally, without adding external mess to the setup and being cheaper. I also have a Dell monitor which I love. I would think an iMac wouldn't last me as long. But what are your thoughts?