If you don't want to spend over 200.00 then I would suggest the Delta SS 350 as Bob N says. It's about as cheap as I would go and still be useable... however, I would also check out the Craftsman 16 at Sears as they go on sale f everyonce in a while. For a dozen times a year or less, it just might do the trick.
http://www.sears.com/shc/s/p_10153_1...me=Scroll+Saws
Corey