Another suggestion, I put Nashbar Streetwise tires on my bike when I replaced my old tires, and they're great. Cheap, too.

Very easy to install, and they have Kevlar for flat protection. Knock wood, I haven't had a flat with them (and I've ridden through some gnarly road debris).

Sizes seem quite limited now than when I ordered mine, though. Mine are 700x35; they have that plus 26x1.25 and 26x1.5. Don't know if those sizes are of any use to you.

Nashbar Streetwise Tires