MacMall sells iMac and MBP for $100 under Apples price (after a 'rebate') as well as free printer and software 'after rebate'. This is about the best deal you can get. Coupled with Tax savings you save nearly $400 if you had to buy the Notebook, Software, Printer and pay tax on all of it.
If you are using eBay, make sure you use live.com's 25% cash back link to get $200 back in 60 days on your purchase. Though the MacMall deal is technically still better.