I just completed a second article on the topic and had it published by Ezine Articles.com. Click on this link to read it.
Basically, it is a case of supply and demand and being willing to go where the jobs are. Be flexible. Once you start teaching you will quickly find out if you want to make a career of it. If you do, then it is definitely in your best interest to complete your degree. More, better paying opportunities open up. Similarly, if you want to change the country where you are teaching once you have some experience, fine but initially you want to gain teaching experience.
For the moment there are still opportunities out there to teach without having a degree but authorities are getting tougher all the time. How much longer you will be able to so that is anyone’s guess. My recommendation is to enroll for your degree. At least then a school knows you are working towards it.