I'm a fan of Comp-Tac's IWB holster myself. The MTAC is about the most comfortable holster I've ever encountered (very similar in design to the Crossbreed Supertuck and not nearly as fugly as the Kholster (IMO)).
There are a number of posts on another thread the the CCW section:
http://www.rugerforum.com/phpBB/viewtopic.php?t=111972&postdays=0&postorder=asc&start=15
Myself I got a Theis Holster ( IWB) for my SR9c w/CT.
Got it in Horse hide with loops for OWB if I want.
http://www.theisholsters.com/products.php
Have been carrying the 9c around and I forgot it was there!
Great holster, it feels and looks as good as my CBST (for my SIG 239).
For less money and only a 1 week wait time!!!!!