What size? Check Ebay for a used Stealth or Synergy.
Great idea....found a Synergy SRV4B 32/22 on craigslist this summer for $50.
Miken Black Freak has been getting a lot of hype recently....only $159 on Amazon. Get it in two days with Prime shipping.
Amazon.com : Miken Freak Composite Fast Pitch Softball Bat (2-Piece) : Sports & Outdoors