I've been an EMT for 12 years, very interesting at times. But I wouldn't trade it for the world.
Most classes are ran through your local community college, or higher learning institute, it varies from state to state and area to area. Everywhere I know you have to be "sponsored" by a service, meaning you have to join somewhere. Stop by or call your local ambulance service or fire station, they'll be able to help (a lot of volunteer fire departments run an ambulance).
Classes usually run on Saturdays, or two nights a week for about 3 months. Price varies as well, maybe $40-50, not including books, supplies, etc. But don't worry, it's not too expensive. Are you planning on going to Paramedic school afterwards? That will cost you about $1000 and take about 6 months to a year and is a lot more intense. The difference in Paramedic is you can administer drugs and narcotics, start IV
's, manage airways by intubating patients, cardiovewrsion, etc. So the skill and training is higher. As an EMT you medical skills are kind of basic, but just as important none the less.
Are you planning on volunteering or as a job? Just an FYI the days of volunteers are drastically decreasing, so you may be helping your local volunteer squads greatly, but there are still many very strong volunteer departments around. Starting pay around where I live in Pittsburgh is $8-9 an hour, $12 and up for a paramedic.
If your looking to go paid, the good paying jobs are with major cities or municipalities. Private services sometimes pay well, but is boring since you do a lot of transports (hospital to nursing homes, etc). Since you say your burned out at your current job, be careful as some services are VERY busy. It's all in what you put in to it. And your never too old to go to EMT school, I know plenty of people who went in their 30's, 40's, etc.
Let me know if you have any questions or need help. Best of luck to you!!!!
[Edited 2005-02-27 23:49:11]