You aren't required to take physics in high school anymore? Strive to do more than is required of you, with education as your primary focus, and your generation will help pull EMS out of the "profession" category into the "professional" category. Physics will only help you in your future...
http://www.hultgren.org/position/index.htm
Check with both AMR and Rural Metro. They are both hiring medics in Lexington right now, not sure about basics.
I get cheap EMS pants at Uniforms & Accessories Warehouse.
EMS pants for $19.95 a pair.
http://www.uniformswarehouse.com/prostores/servlet/-strse-1059/EMS-Pants/Detail
Tactical BDUs for $14.95 a pair...
Not sure what part of the country you are in, but Backcountry Rescue Institute is doing a W-EMT upgrade (5-day course) in NC in May.
http://www.backcountryrescue.com/