Wow. Away for 24 hours, and this erupts...
Anyways, thanks for the contributions guys. I'm definitely keeping my dump pouch, so getting rid of it isn't an option. I run lowcaps, so it's nice to just be able to toss an empty in a DP instead of fishing around in a pouch.
I'll think about giving the crossdraw method a try, maybe borrow a pistol and holster from a friend.
Jewish Ninja: As to your question on the first page- Sorry, I probably didn't phrase that too well. I've got the dump pouch mounted on the side of the vest, and it happens to cover up the exact spot where I would likely mount a belt holster. It's times like these that I realize shooting rifles and handguns with opposite shoulders/positions is f**king annoying.
I'm going to throw around the dropleg idea as well. I ran a cheapo condor rig a few years ago, and that sucked royally. But I haven't gotten a chance to try out something better, so that'll be on the list as well. And the comments about the SERPA are encouraging as well, that's definitely choice #1 right now.
And no. No box mags. Blasphemy.
To those who asked, I'm looking at either a 1911 (probably WE or KJW) or a 226/229.