I want to buy a mac for my kids, but can only afford used. Considering buying a 2008 iMac with 24" display, 2.5ghz and 4gb ram with a slight superdrive issue (doesn't always read dvds/cds). external drive included. Lion loaded. We plan to use it mostly for writing, internet, photos management, garage band and possibly some other music programs. Asking $600, thought i'd offer $500-550. Yes? Or too old/too much?