the thing is with thos cheap keyboards is that the knobs and faders wont record as exact sysex\midi movment as in synths,samplers or effects
thats why some simple midi keyboards cost 250-300 dollars and some 100 dollars.
check out edirol and midiman's\evolution keyboards.
invest in a better one and you wont have to worry about cheap thing falling off
edit:found something rather cheap for you
m audio has started shiping their new line of keyboards
i'l give you a link
this is the expensive one,fully wight keys and about 20 knobs and faders
http://www.m-audio.com/index.php?do=...b1c6ffaa247f5b
around 500 us
http://www.m-audio.com/index.php?do=...13c45796925b27
this is the one i use not sure if it has enough knobs for ya.