You could get whatever case you like and attach a FlyGrip. Or use the FlyGrip without a case. I've had mine for about a week now and find I use it as a kickstand 100% of the time I have the phone out of my pocket.
You can get the seidio active holster combo for about $37 on amazon for the black one. The color ones are usually more expensive. Waiting a little longer before buying. Currently have a leather holster and a tpu case with kickstand.