Melissa,
I'm new to the board, and a new Disco owner. I've been lurking for a few weeks, because I'm totally new LandRovers. Not new to 4 wheeling, so I thought I'd jump in.
May be further south than you wanted to go, but if you can get down to San Antonio the "Devils Den" is a great spot. Here is a link to the San Antonio Rover guys, they might be able to help you. (I live about 200 miles away)
http://www.texasrovers.com/sanantoniochapter/contacts.htm
Here is a link to some of our outings at the den:
http://h2southtexas.com/gallery.html
I am a hummer owner

(the yellow H1), however after watching the Discos do their thing at our outings, I fell in love with them. I've had mine now for just about a month, and love it. I can't wait to get out and see what it can do.
I'm also looking forward to becoming a part of the community. (if I didn't just shoot myself in the foot by admitting to also driving something else

)
Hope this helps,
John