i'm using the m-audio audiophile usb. doesnt have the multiple outs you're after but i think the next model up does (cant remember what its called). but the sound is quite amazing. as for a controller, i use the uc-33e & novation remote. the uc-33e is perfect for live and the patches are good to go out of the box.. no messin around with cc numbers, just hit abletons midi-learn and select. the remote on the other hand takes a little more setting up and i find it better suited to soft synths (but i did use it on live b4 i got the uc-33e & it works perfectly well), but it does have a v sensetive keyboard. you really need to decide what way of working suits you and only then choose the controller to match.