Thanks again for the tips, guys.
Right now, I'm using Hafler M5 reference monitors and and AKG K240 headphones.

Not the highest-end of monitoring technology, I will admit.
Anyway, Crawdad, I did notice that the low-end is pretty solid on a typical stereo with bass-enhancement / loudness button.

But I also noticed that it comes out a little weak on the headphones, so I mucked with it a bit more. I used a couple reference mixes; one I find to be bass-heavy and another I find bass-thin, and I boosted the bass on my mix untill it was somewhere in between the two, and now I think it translates a little better. Good call on that one.
I also boosted the bass to the vocal, which I think draws her voice a little closer. Also added some verb, which it probably needed . . . although I've been having this fascination lately with dry vocals.
Erichenryus, good suggestion on the background vocals. I think that would be a great idea. They're good, but they need something.
Anyway, I just updated it, so if you listen again, you might notice some minor differences, based on your suggestions. This has been a great team effort.

I'm going to have to start calling on you guys for every one of my mixes now.
