[LAU] recommendations for midi controller keyboard

[andy baxter]

Hi,

I'm thinking of getting a midi controller keyboard. I.e. no onboard 
synth just a keyboard which sends midi messages to the computer. Should 
be pressure sensitive but not worried about aftertouch. Ideally it 
should work with a usb cable under Linux (but have a midi out as well in 
case I ever need it). Assignable controller knobs would be nice but not 
necessary.

I had a quick look on the gak.co.uk website, and this one looks like the 
sort of thing I want (though I don't know if it works with Linux):
http://www.guitarampkeyboard.com/en/behringer-umx-61/70535

Any (other) recommendations?

andy