The Sub-Compact Glocks (#269mm, #27.40S7W & #33.357sig) are all good choices. Easy to conceal in a IWB or even a Smartcarry. The Springfield XD Sub-Compact in 9mm & .40S&W are another good choice.
http://www.glock.com
My Glock 27 is just as accurate as my full size Glock 22 in the same caliber and just as reliable.
CZ also has a new Sub-Compact called the CZ Rammni in .40S&W and 9mm, a good feeling gun. CZ's are a great gun all together.
http://www.czusa.com
Kahr also makes some really nice weapons that are super easy to conceal. In .40S&W and 9mm in both steel and polymer with single stack magazines.
http://www.kahr.com/front.html
With all of that said, try to get to a range and try some of these out including the Kimbers and Para's mentioned above. They are all great guns but each person likes and feels comfortable with something differn't. Good luck!