The steel rig is pretty simple. It's my Zum Hybrid with 710s, Hilton Pedal and Phil Bradbury's Little Walter 89... The tone controls are set straight up except for the bass that is up about 1/4th.. I don't record with any effects so I can control it in the mix.. It helps me hear the tuning better while playing too.. I record using ProTools. I use two mic's, one into the center of the cone and one to the side of the cone. In the mix I blend the two to get the tone I like.. This saves me from having to EQ.. In the mix I use a touch of compression to keep it in the track but not too much so I don't loose the Dynamics.. In the mix use a little stereo reverb and stereo delay.. The delay is set to the tempo of the song. I use 1/8 note on one side and 1/4 note on the other.. The dry steel track is panned to the center.. This creates a nice wide space but doesn't cover up the natural sound of the steel the way too much reverb can...
I hope this helps and answers some of the questions you've had.. In my signature at the bottom are links to two of my songs.

