Here's some links to schools:
http://www.fltdisp.com/TheDispatchCa...4/Default.aspx
http://www.airlinedispatcher.com/
http://www.dispatcher.org/
http://www.sheffield.com/
Since one of our FA's is getting ready to go to school, I'm a little more up on this than most.
No aviation experience is required. If you are employed as a pilot at a 121 carrier, your training is much shorter. Think weeks instead of months.
Pay ranges from regional captain to near captain pay at a major.
It can take months to get a slot at a good school. It's not cheap, either.
Just like us, you start at smaller carriers. Mostly regionals, then work your way up the food chain.