At the dentist I really didn't get a ton of help yet. The appointment I got was short since it was someone's cancelled exam but he looked at the tooth and said that there was a decent amount of decay on it so he was unsure of what would have to be done until it was cleaned out. But he said it might be a crown, a root canal and crown, or they'll just pull it if the decay is under the gum line. If they pull it I probably won't get anything to replace it since its the furthest back tooth on the bottom left of my mouth. So I'm scheduled for the cleaning and starting whatever procedure they'll do tomorrow after work.

As far as price he said a crown would be about $1000 but my insurance would cover half. If it ends up being an extraction, it'll be free for me, and like $35 for the cleaning.
On the positive side he took a look at the rest of my teeth and those are all healthy with no issue, so once I get this one fixed up I'll be as good as new.