For IWB, I'm looking at the Fist #1KB-CANTABLE CLIP, which retsup recommends.
For OWB, the Ruger website has the Mitch Rosen SR9c and it is very, very nice. I love this holster. Rides perfect and just disappears at 4:00. Comfortable and retention is superb. It's leather, but "clicks" to fit just like Kydex.
Next, I'll be looking for a shoulder rig to round out my options. The Forbus paddle holster I got when I bought the SR9c is fine for range and IPSC-type activities, and fine for "throw in the car" type stuff, but not good for CC.