There's a Student-Teacher issue of Office for Mac. IIRC it's about 150$. I use Abi-Word and like it, there's also Open Office for OS X. I'd agree the one best thing to do to a new iMac is add RAM, 512 at the minimum a full gig is way better. I finf Virex much less a pain than Norton in anti-virus.

If the the old drive as at all useable burn the files you need then transfer. Heck MNSTF has a LOT of Mac users to support switchers.