Thanks everyone for your supportive thoughts and prayers. We're going to be visiting the company/area we might be moving to this week, so we'll have a better idea of what we'd be gaining for the loss of close grandparents. Hopefully everything will be clearer soon. I just got a sub job locally, too, so we'd be moving from two jobs and our house as well; it'll be a hard decision, but I'm more or less at peace with it now, and I can see good things both ways.
Auraji, I'm so sorry to hear about the biting--that sounds really tough.

Jules will bite sometimes, but only when his teeth really hurt (he seems to be getting his molars in now, so he's pretty ouchy, poor bub), and it helps to stop and give him some pain relief (usually ice chips) before continuing to nurse, but it doesn't sound like that's much of a solution to your problem.

Honestly, it sounds like you're doing everything right, and she just doesn't get it. Do you have a local support group like LLL that might be able to help as a last ditch effort before weaning her? I know I'd have a tough time letting go of the nursing relationship when Jules was still interested, but if he were biting like you describe, I don't think I could keep it up indefinitely either.
At the very least, you might check out what "The Womanly Art of Breastfeeding" or another book might have to say about biting, if you haven't already. I just looked at my copy and they mention that nursing position can cause biting, if your growing baby has to tuck her chin to stay latched on--you can try shifting so she is tilting her head back more. Other suggestions the book has depend on when in the nursing session she is biting (if early on, try to get milk flowing before starting to nurse, with compressions; if late in the session, stop preemptively), and if you are using a pacifier or bottle, that can be confusing because those don't mind being chewed on. They also mention illnesses (which seems unlikely since she's been doing this so long), such as earache, teething, allergies, etc. At the very least, if her tongue is in the way (ie, she's latched properly), she shouldn't be able to bite so if you feel her moving her tongue, maybe you can get a finger in there or remove her before you get bitten? This all sounds easier in prospect than in practice, I know.

Whatever you decide, I'll be thinking of you in this difficult time, and I hope it resolves itself soon.
In other news, Jules is trying really hard to run and is on the cusp of talking. I was away from him for 12 hours one day last week (about twice as long as I've been away from him ever!), and he handled it superbly, though he was quite happy to see me at the end of it. (I got to shadow a local CNM; it was a really informative and enjoyable day, since I am becoming more and more serious about studying to be a midwife myself). Since then, he's been much more enthusiastic about signing "milk" to me. It's really cute--he obviously missed nursing that day. Still, I'm glad he's old enough now that he can get by on solids for a few hours, since I've never gotten very proficient at pumping (and he isn't big on drinking expressed milk). He is also walking longer distances; he walked DH and me all the way down to our local playground tonight. It's quite a hike--probably 1/6-1/4 of a mile!--and he just chattered the whole way. We had to carry him back, though.
