I have a 5.11 belt. It works great for me, fits in with most of my clothing and was cheap, no waiting for it to be custom cut, etc.
I'd like to pickup a leather one sometime to go with my K&D Holster that I recently picked up... But didn't get that far yet.
XD-9 SubCompact -- Walther P22 -- Savage 110 -- Mossberg 835 -- Ruger 10/22 -- Bushmaster 16" AR-15