This not a post for advertising for this company...just for the convenience of the readers of this symposium!

Computer System Specials (most are without Oss, add Windows 7 Professional 64-bit for $99.00)
..@...http://www.directron.com/ho.html?_s_icmp=systemsale

They have every part so you can build your own computer!....@... http://www.directron.com/index.html

They have a Money and Payment Policy that will suit almost anyone, because they have several way to make a purchase from them!....@... http://www.directron.com/payment-policy.html#phone