Don't skimp on your PS, its a primary piece of equipment required for your computer. StarTech is decent brand.
Look here for more options:http://www.newegg.com/Store/SubCategory.aspx?SubCategory=58&name=Power-Supplies
Does your motherboard use a 20 or 24pin main connector? Make sure that the PS you buy has the size you need. Most come with a 20+4 adapter, but be sure.
The only requirements is that it would be ATX (matching your motherboard and case) assuming your parts are ATX.