John, from what you're saying it sounds as though the tooth is erupted (out of the gums, not impacted). Therefore, the extraction should be pretty simple, as in they won't have to cut into your gums and dig around, they can just yank it right out. Simple extractions don't cost a whole lot...maybe $100-$150. It couldn't hurt to call some dental offices and ask what they charge. Are you working again yet? If so, surely you could save up that much. It'd be a lot cheaper than pulling it out yourself and getting an infection.
As Karen said you can go to a dental college and get the work done at a discount. I don't know about in Houston, but in Dallas, SO many people go that route that you have to get on a waiting list for at least three months, and then after that it's still not guaranteed the college will need you.