I don't know any that win't rip you off. You are better off buying the 2U case seperately and building it yourself.
I really wouldn't reccomend a 1U for that lot as it will burn itself out too quickly. I would even suggest 4U if you have the space and shove extra cooling in it, you would also have more spacing for the drives that way. I believe adaptec do a great SATA controller which takes RAM as cache and will provide superior performance.