How prevalent are TA positions for archaeology/history and how do I get one?

[bkohn4]

Hello, I was wondering if anyone had an idea of how typical it is for MA students in classical archaeology/history to receive TA positions. I'm taking a post-bac course in classical languages in the fall and hope to be at Michigan, Cincinnati, Bryn Mawr, or WashU for the fall of 2013. Does anyone have any recommendations or advice about TA-ing or even fellowships? I want to teach when it's all said and done but don't really know how to start.