I carry a Sig P226 and I'm an average guy. 5'10, 210lbs. A bit bulky, but never uncomfortable. I often forget I have it at times. I have a Galco Royal Guard holster (found here: http://www.usgalco.com/HolsterPT3.asp?P ... atalogID=7" onclick="window.open(this.href);return false;). Mine's a .357 (FML on ammo) but looking to get a .40 conversion soon.
Oh, as far as 'fashion' concerns, I have none. I usually wear my normal button up shirt (long sleeved, oxford, slim-fit, tailored) shirts or standard Polo shirts and they all work well. Along with my normal Levi's jeans (527 Bootcut) You can't even see the bloody thing unless you really 'look' for it. Which I do now.. and started to do. I try to see if anyone is carrying. Haven't found one yet. I'm looking for y'all ;)
When I went to purchase my holster, the guy started to think I was 'crazy' and didn't know what the heck I was doing. Kind of made me mad a bit, considering I was going to lay down some money (not cheap, btw) on this holster. I'm considering a Kimber Ultra Carry .45 as soon as I get some funds, but this pistol works fine and I shoot it very well. Never jammed since I had it.
Yesterday I carried a full size under a T-shirt. The right belt/holster combo make a world of difference. Here's the basic size of the pistol I carried....... .45acp in a CrossBreed Supertuck with a Galco 1 1/4" belt. Works like a charm.