Advice on purchasing queen size sheet sets for about $50?

I want to purchase a new Queen Size sheets set. I would like a set that has one fitted sheet (for a 15 inch mattress) and at least 2, preferably 4 pillow cases. I live in Florida and ideally want an all-cotton, preferably Egyptian Cotton 1000 count sheet set. The problem is the beginning price on Amazon for a 4 sheet set is about $95.00. If my budget is $50.00, what should I buy? Note -- I do get hot here, so microfiber (polyester) which is cheaper is probably not a good idea. Should I go for a lower fiber count? 400 or 600 instead of 1000? Does a polyester/cotton mix make a difference if I get hot in the summer?

Spock (rhp)

lower thread count. try Ollie's Discount, if you've got 'em in your area. I can tell you from personal experience that the Wal-Mart 600 thread count sheets don't withstand the washing machine very well, so I'll never buy they again. Don't think Beall's Outlet has 600 count sheets at all, but they're worth checking