I'm thinking of starting Steel Challenge shooting.  Who here does it?  What are the rules/classes/etc?

I do (not well, though ).  It's really fun!

Where in PA are you?  There are probably matches all around you.  

I shoot Limited in USPSA (the new owner of the Steel Challenge), but I shoot Rimfire Iron Sights for Steel Challenge.

I'm in SE PA, about an hour outside of Philly.

Anyone know who makes a speed holster for a Glock 17L by any chance?

I'll find a link for the holster.

A bunch of NJ people come down to Fredericksburg for their matches (Steel & USPSA).  York held a big Steel Challenge match last July - I'm under the impression that it will be a yearly event.  Plus, to make it worthwhile to have the steel, they will be running small matches every couple of months.  Old Bridge in NJ has matches also.  

Shoot me an email - I'll forward any match announcements I get.

I'm shooting a match tomorrow as a matter of fact. I've done them for several years now & they're LOADS of fun!

They're also starting to have .22RF matches in steel too.