Best MIDI keyboard for live EIP?

[griffinryan11]

I use Ableton Live 9 Standard, and I currently have an Akai MPK Mini. I am a classically trained musician, who does vocals, saxophone, and piano. I want a MIDI Keyboard that automatically maps to Live, and is good for playing in a Electronic Indie Pop live scenario (a band.) My buddies and I want to play stuff like Passion Pit, Little Dragon, etc. So I would want a keyboard with a few sliders and knobs, and possibly a pitch bend wheel for mapping LFO. Also, a FAST usb port, since we will be playing lots of gigs. I don't know whether or not to go with a keyboard with Hammer-action or not, seeing as I would be using this and the MPKMini, side by side for synth leads. I would like it to be under $500, since I blew all of my money on a new laptop Thanks in advance!

[XSIMan]

Novation SL MKII

Comes already mapped to live and it automaps to any third party plugin you select.