I now have a 6 year old PowerBook with 1 ghz, G4, 512MB, 15", running OS 10.3.9. I use it to run my small (me) business (Quickbooks). Read & send email. Make bid proposals with Appleworks and fax them to General Contractors. I use Excel for my spreadsheets. And read blue prints for bidding job. Personally I like using it itunes, iphoto & reading. My problems are: I can't always open email, some email graphics don't open up, I can't download songs from itunes, some web pages don't want to load (ESPN) I get the beach ball and other minor stuff. Yes the main reason (business) for using my PB still works, but for how much longer? Would I be better off buying a new macbook pro or trying to upgrade my old one? Thanks for any thoughts. I'd like to buy new or would upgrading work?