I'm gonna keep this short and simply say thanks to everyone for all the great comments.
I want to answer a couple of questions for Groucho, Chrisharris and Guernica. OK--signal chain. On the vocal and the acoustic guitar, I used the MXL V93 into
a Behringer VX2000 preamp. On the preamp, I engaged the low cut at about 40hz, used the expander to help keep out noise from my computer, and I also used the optical compressor set for fast release. The signal goes to my MOTU 2408 and into the computer.
The bass was recorded through an ART Tube MP, compressed with a god-awful NanoCompressor--but, hey it sorta worked for this.
The reverb is a stock setting called "expensive vocal" (HA!) in Digital Performer, my audio and sequencing program.
Once I got the mix sounding as good as I could using EQ and some compression on the individual tracks, I made a stereo bounce of that. The last step is the fun part.
Although I know this isn't pro mastering (its homerec, right?) I use this little plug in called Spectrafier, which is basically a multi segment frequency meter. It shows me where the hot spots are. I then take EQ and tame those hot peaks until they don't overload anymore. Every time I use it I see that there is stuff in the low end thats too hot. In the process of taming those low spikes, the "mud" in the mix starts to vanish. Of course, I have to use my ears too as too much cut can start to kill things.
I ran a bunch of pro mixes through this Spectrafier just to see what they looked like in terms of frequency. I found a very similar pattern in everything and thats what I ballpark towards. Anyway, Chris--I think this process is what helps to take the boom and mud out of the verb. I actually don't boost any high end--its all cuts in the 40--500hz range. I suppose this is part of what those golden ear boys do without such assistance, but since I'm half deaf in my left ear, I'll try anything that helps!