If you sit or drive vehicles a lot I would consider a well made shoulder rig like a Galco Miami Classic II or a Aker Comfort Flex. I prefer the shoulder holsters that have the off-side magazines in a horizontal mode. It frees up space on the belt-line.
A drawback of the shoulder holster is a slow re-holster method but its good for deep concealment in low threat areas or for armed citizens(CC license holders).
Strong side polymer rigs or top leather designs could work too. NOTE; custom shops or special holsters make take several months to get. Be ready to wait. Even now in the 2013 super-panic new gear or holsters may be delayed.
Many gun owners like Kydex or synthetic styles for ease of cleaning & wear/hard use.
Check these makers/firms; www.usgalco.com www.safariland.com www.bianchi-intl.com www.blade-tech.com www.mitchrosen.com www.donhume.com www.blackhawk.com www.highnoonholsters.com www.natchezss.com www.galls.com www.qmuniforms.com www.uscav.com www.kirkpatrickleather.com