Wheres the cheapest place to get a keyboard that I can use for Midi?

I just cant do it with the mouse on sony pro very well. Unless theres a way to use my laptop keyboard?

Any ideas?
there should be a way to use your keyboard on your laptop, like try capslock... that's what it is for macs..

if not, the cheapest place could either be a garagesale - if the keyboard has midi and then get a cheap 20 dollar interface... total cost probably 40 bucks..

or guitarcenter with a USB MIDI keyboard. depending on how many keys you need, i think they start around 50 or 60
My Guitars:
Gibson Les Paul Studio
Epiphone AJ
Ibanez Strat Copy

Orange Tiny Terror Head
Old beaten up Peavey cab
Marshall MG30DFX
a lot of cheap wal-mart keyboards have MIDI, and you can get a MIDI USB interface for like $15 at most music websites.
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