This deal has ended.
Through 5/30, Tiger Direct now has the Lenovo 3000 K100 Desktop PC on sale for only $499.99 after a $200 instant discount and this $100 mail-in rebate (expiring 6/30). This powerful PC features a 2.2GHz Intel Core 2 Duo processor, 3GB memory, 500GB hard drive, CD / DVD burner, TV tuner, and comes loaded with Windows Vista Home Premium. Monitor is sold separately (check out recent BradsDeals listings for monitors). Shipping adds $18.24 and there's no sales tax (except IL, FL, NC).