I know all about the argument that smoking doesn't make anything better, but that's not the issue here. The issue, it seems to me, is Dunedude's lack on focus and concentration, which is indeed caused by nicotine deprivation. Been there.
No health insurance, but you're on Wellbutrin or something, right? What about checking with the doc to increase the dose, maybe?
I know this is so NOT the time to try and learn new coping skills, but really, maybe it is? Possible new job? New house? Lots of things changing might re-focus your attention on things besides smoking??
One other thing to wonder about: will you be able to live with yourself more comfortably if you "power through" the craves, or does your overall sense of well-being require that you give this quit a hiaitus?
Either way, I know I speak for everyone when I say we are totally here for you, Dune! Whatever you do, keep in close touch, okay???
peteg