Here is my single stack set up, IMHO you want an Velcro inner belt it keeps everything from moving and makes putting on the rig very easy as you dont have to mess with constantly taking the holsters / carriers on and off.
DAA Pro Belt (includes inner belt just keep the two together and no lint issues) - $50
DAA PDR II Holster (will not be IDPA Legal) - $80
Safariland 771's - Sign up for the Safariland newsletter and get like $20 off an order and wait for a 25% off sale I ended up getting these for like $18 a piece and so far they are great
