Clothing choice makes a huge difference. I found that a certain style of Levi that for me sit's on the hip better and makes carrying an SR-9 more than comfy with a Supertuck and as long as I wear T's that are of a good quality material, no one ever notices. Minor printing but no one pays any attention anyway. I also have a Taurus M85 38 spl that I use for yard work, easy access car gun, back up, etc. I know many people who carry full size 1911's as EDC and with the right shirt, they conceal very well. Getting the gun you like is one thing, tayloring your dress to fit it are another. The Crossbreed IWB allows one to conceal some pretty good sized firearms. Everyone seems to be focusing on gun, but for CC, that is just part of the equation. If the shop will let you, wear some next size up or so jeans (and belt) and a loose shirt and just tuck it in the pants and see how it feels and conceals. A slight forward cant helps to hide it. If the gun feels good to you, be sure to fire some rounds through to see how it handles.
Biggest thing for conceal carry, dependablity and familiarity. Make sure the gun goes bang when it's supposed to. Then make sure you know the gun well. Not guns in general, but THAT gun.
Not that I really own any guns but if I did, that's what I would do. Then load everything up +P gold Dots or similar and pay attention to the world around you.