keystation 61es questions

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Im considering buying the m-audio keystation 61es but i first need to know how it will work in ableton live next to my emu mp-7 controller which takes up the midi-in port on my audiophile 2496 soundcard. Will I be able to control live using both controllers at the same time (with 61es through usb), like controlling one channel with my mp-7 and another with the 61es? Im from Sweden and there are no stores selling this keyboard here, so I also wonder if anyone has tried it and if its any good. I really dont want a keyboard with lots of loose/broken keys after some usage, so how's the build quality of the thing? is the synth action good?