I owned a USPc .40 for a long time. I really liked the gun, A LOT, until I got my glock...
With that said, it's a great sidearm.. if not a bit on the pricey side. Functioned great, shot well, was accurate... and a good size for CC or OC.
I have heard good things about sig and CZ as well.. I think you won't go wrong with any of those. Check out the striker fire pistols though... Glock, M&P, XD.... you may find you like them more.
Carry on.