[jodi]

Make sure you get all the costs associated up front - I don't know what state you are in, but here in NY you have to take a licensing course (either 1-2 full weeks or possibly night classes at a local college - about $200-300) before you can take the exam ($50). Then you have to pay your dues and for your lockbox key ($800-900 annually) before you can get started. Remember, too, that with any commission job, there is time between when you make the sale and when you get paid. In real estate (in NY), it's about two months after a sale before you see any money.
I guess I made it sound better than it was! I wanted to write again to warn you that it is very difficult. The drop-out rate for first year agents is incredibly high - I would guess 50-75% don't last a year. But if you can find a broker to work under who doesn't mind if you only do it part-time (as I do), it can be a great way to earn a little extra on the side. I think people run into trouble when they try to do it full-time, without benefits, because you can go so long between commission checks.