TigerDirect.com offers this eMachines Desktop PC for $299.99. Better still, redeem this $20 rebate and the price drops to $279.99, with $10.06 shipping, making this the best price we could find. This desktop features 2GB of memory, a 320GB hard drive, a DVD burner, and it runs Windows 7 Home Premium. It does not come with a monitor, but check out this selection to complete your system. There is no sales tax (except FL, GA, ID, IL, SD, and TX).