Pretty much all the companies make acoustic amps now (it's the hip thing). Fender, Crate, Traynor, Peavey etc.You can get a decent mike (low impedance) for about 60 bucks. Try not to scrimp on the mike. It's possibly the most important component. Oops, forgot about the stand. Probably 20 bucks. (Leej, Radio Shack carries Mikes and stands don't they?
Sandy, are you near Alex?
It always helps to have "connections" in the biz.
A simple contact pick-up (Oyster pick-ups are good) are around 25 bucks and will do the job.
All in all Alex, it'll cost about a tenth of what you'd spend sending your kid out to play tennis!
P.S. If a waitress asked me home today....I'd pass out!
Rick