Build a custom pc if you have the ability and knowledge or like an adventure. There are some pretty good refurbished computers at www.surpluscomputers.com
, if you want to just get something you won't have to worry about go with a brand name new computer, they don't cost all that much more. You can take advantage of the promotions they are always running. Go to
Or any of a number of sites like that to get a promotional code and get a good discount on a dell.