New to the forum here, hoping for some input, appreciated. I've long worked in publishing, about to retrain and move to graphic/web design. Am still with my old G4 PowerBook which has been brilliant but it's time to upgrade, clearly. Will be running CS4/MS Office, Quark at times. Question is, given I am about to take courses, between contracts here so $ is an issue, I'm considering--- Older Non-unibody MacBook Pro 15" 2.33ghz, 2RAM (needs an upgrade to 4), 500gb drive OR Can get a brand new white MacBook unibody, 13" 2.4ghz, 4RAM, 250gb drive.I realize the screen is considered superior in MacBook Pro (in either case 13" or 15" I would run an external monitor too at times) The deal I can get on a new MacBook works out to same cost essentially as the used Pro. Would you even consider an older MacBook for starting out ie Core 2 Duo at 2 ghz, 2RAM, 120gb drive or is that likely going to be far too sluggish? I am just starting out here, I'd like to not have to upgrade for at least two years (I will also at some point be investing in an iMac desktop). Thoughts? Or perhaps something I've not thought of here? Much appreciated!