There are many many IWB holsters, the 2 most popular I know of are the Crossbreed supertuck, which has many variations to it out there and the High Noon holsters. Every major maker has their own holsters. If you get a gun get a good holster. Cheap holsters are fine if there is no other option. don't go cheap on the holster.
The SR9c does not have second strike cabalities. It is however a very fine weapon, light accurate and easy to shoot breakdown clean and reassemble. With todays modern S/D ammo mis fires are almost unheard of. Personally I would not discount a gun because it diesn't have second strike. I never even think of it. I have seen misfires mostly in reloads and it is ill advised to carry reloads in your CCW. I would not worry about second strike myself.