Thanks for the feedback. The acoustic I used on "Under the Milky Way" is a thin body electric acoustic that I really don't like, but it's the best acoustic I have at the moment. I recorded it with a mic in front of it, no amp. As bad as it sounds in air, it sounds worse in an amp - I need a new acoustic.
My mic is a Sennheiser 835, and I use an m-audio delta 1010 soundcard. I do pick up some background noise because of the room I record in. The computer gives off a small amount of hum, and I can't really do anything about it at this time, other than try to keep things as far apart as possible.
If it is heavy on the low end, it may be from my EQ. I mostly monitor on my Senheiser headphones, and tend to crank the low end too much to get the bass. I also test on my PA with Bose speakers, but the eq settings on that can throw off what I am hearing. Monitoring is one of my biggest problems. I guess I could try playing commercial songs through my PA and balance it right, then compare to my stuff.
Thanks for the tips!