Before getting a holster, you have to figure out what you'll be using it for i.e. open carry, concealed carry, range use... After you determine use, you have to decide how much you can afford...
No offense to the guys who own Fobus, but I think they're about the poorest quality, mass produced holsters I've ever seen. I know people who have torn belt loops or ripped the holster against its rivets while drawing their pistols. -IMHO, they're barely fit for range use... If you want a good Kydex holster there are a half dozen quality manufacturers out there. In addition to the ones listed above, I'd add Comp-tac, SideArmor, and Predator...
If you want leather, there are many quality manufaturers out there including large companies like Galco and small shops like Andy Arratoonian's Horseshoe Leather in the UK. -What you should get largely depends on the features you value or are looking for. You can get anything from a minimalist belt slide holster to the more robust pancake holster (with or without thumbbreak) to the new "Snap On- Snap Off" series of holsters that have loops with snaps so they can be attached to a belt already being worn by the user. I believe all the big guys are starting to offer this... I know I've seen variants from Mitch Rosen, Milt Sparks, and Galco.
-Think about what's important to you in a holster and then make a checklist to start ruling holsters in or out. Once you have a short list, it'll be pretty easy to figure out what is the right one for your needs.
Good luck.