Apple has offered a new promotion on iMacs, eMacs, and iBooks on itis Hot Deals page. If you order a new unit from that list between July 12th and September 30th, you can get a free Epson Stylus Photo 820 printer for free (tax not included). If you want a different printer, you can apply US$100 towards any other Epson Stylus printer with a price tag of more than US$100.
You can get more information on this promo at Appleis Hot Deals page.
Apple has also updated the CompUSA Hot Deals page with many offers. The CompUSA Hot Deals page is part of The Mac Product Guide, which is a listing of all Mac compatible products. The Hot Deals sections for retailers include special offers that one can only get there, at least in theory. The new CompUSA page includes deals on a FireWire drive, a scanner, a 19" monitor (US$149.99), a Palm PDA, a couple of games, several kids titles, Photoshop, and assorted other products.