are you looking for just a MIDI controller? if so, check this out:
<a href="http://www.efkaymusic.com/html/mk4901.html" target="_blank">http://www.efkaymusic.com/html/mk4901.html</a>
it has 49 keys...can't really find a cheap 25 key controller these days, they always seem to have buttons and other control knobs and stuff. i have a 4902, it has full size keys with velocity, pitch and mod wheels, and a bunch more buttons. it works fine with my sampler and for computer stuff.
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