M.L.
It's wonderful you are in Texas. "I Heart Faces" is an online group and has get togethers and such on photography in Texas,. They have a website with challenges to help each other better their photography and photo editing techniques.
I would recommend photoshop for editing, but you can do basics for now with picnik.com Lots of tutorials online for both of these.
Also, a lot of these photographers are not that good. They are cropping up everywhere right now, I see their portfolios and am totally shocked b/c they are so awful. Taking a course can give you experience on helping to coach people on posing, exposure, learning your camera, proper editing, framing the subject, photo composition, lense flare, obtaining bokeh...
Here are some expert sites on photography and enhancing your skills:
http://www.digital-photography-school.com/5-tips
http://www.digital-photography-school.com/21-settings-tec...
http://crafterholic.blogspot.com/2009/09/photography-tips...
http://www.mcklinkyblog.com/category/digital-photography/
(he also has a great e-book)
Look at some of the portfolios of top photographers and engagement photography to see what rends are in styling and such.
http://www.sadieolivephotography.com/index2.php
http://ruffledblog.com/ has great examples.
If you find a good photog in the area, many would offer mentoring opportunities, or can refer you to photog gatherings or continuing classes.