Basically cub, as noted, you're going to want to try various different styles and makes of holsters to see what works for you. Thanks to the multitude of variance in the human body, there is no single carry method or holster design that is right for everyone. It depends on your preferences and your body.
For me, it took 8 years of trial and error, but when I finally bought my Milt Sparks VM2, I quit looking. A friend was looking for an IWB holster for his 1911 and I loaned the VM2 to him. It didn't ring any bells for him, and he wound up with a Ken Null holster that gets the job done for him, but chafes me something fierce.
I will say this though, just like scopes, you get what you pay for in a holster. I've known people that toted pistols for years in cheap mass-market holsters and didn't know what they were missing in comfort until they finally got their hands on a decent semi-custom or custom holster. You might get by with a cheap Uncle Mikes or Galco if you're going to be carrying maybe once or twice a week for a few hours at a time. BUT. If you're going to be dedicated to carrying a gun for 8+ hours a day, everyday, then you really owe it to yourself to check out some of the models from the top makers.