I doubt you would be able to find a ploy gun that has as good of a trigger as a 1911.
Lots of used colts in the market these days that you can pick up for cheap.
There are 2 probs with 38 super.
1. Ammo is $$$$
2. If your going for max loads, you will most likly not be able to reload the brass.( not really a big deal any more as in USPSA you need a 40 cal or bigger to make major)
I'd also like to point out its one of the 3 9 mm pistol rounds men are aloud to shoot... the other being 9x 23 win and 9x25 dillon.
( yeah I know modern sd are ok, but 9 mm ball sucks)