Tiger Direct lowers the price of this Acer Desktop from $699.99 to $549.99 to $519.99 after code POV30505. Shipping adds $19.98, but compare this with $649.49 at Overstock, which was the next-best price we could find! This is a great price-to-performance choice as it features the powerful 3.1GHz Athlon quad core processor, 4GB of RAM, and a 512MB video card. It comes with a 20" monitor. Sales tax is only charged in FL, IL, NC, TX, GA, SD and ID.