This one; also avialable at Wal-Mart:
http://www.amazon.com/Bell-26-Inch-C...643138&sr=1-18
It is made by Vittoria and is 47-559. They last forever, resistant to punctures, with Kelvar belts under the tread. They are rated at 65psi - I have run them at 75 psi.

Fits your budget, and I think that you'll be happy with them. Not a snobbish tire, just a good tire at a very good price with an incredibly low cost per mile.