Strong side pocket, right above clip knife.
http://www.naaminis.com/magnum.html
(Scroll down, holster grip)
For the big gun (1911 chambered for 10mm), it depends on how much time will be spent driving, duration away from base camp, climate, choice of clothing, etc.
-IWB strong side/appendix
-Thunderwear/smartcarry
-Kydex strong side hip with jacket or 5.11 vest
-Would get out shoulder holster if I still rode motorcycles (can't think of any other reason to ever try shoulder holsters again

)