I recently picked up another Strayer-Voigt Infinity from someone on the USPSA Classifieds board.
.40 S&W, aluminum frame, Dawson fiber sight. It came with an STI magwell, but I plan to remedy that soon.
Here it is with its big brother:
Something about these guns make them a pure joy to shoot. I don't know exactly what it is, but I'm sold on them. I'm seriously thinking about selling off a bunch of my other pistols that I never shoot now, and getting a couple more SVs.