I've seen folks get through IDPA matches just fine with Taurus revolvers and good .38 Special ammo. I recently taught an advanced course at a large gun club in Pennsylvania that teaches a great number of basic live-fire NRA courses. They got a great deal on traded in Taurus .38s from a security company and use them regularly, and they tell me they're standing up just fine.
I'm personally partial to one of the best deals of our time -- drying up, but still out there if you look -- trade-in S&W and Ruger .38 Specials. They tend to be very smooth and reliable, and there are lots of gunsmiths and armorers trained to keep them in top working order.
best of luck,