Reply to Small home production studio

I need to add some gear to the home studio. So I've gone through a number of production studio threads on here through the last month but I just need some specifics for my situation.

I have the following:
Jbl Lsr#### monitors
Akai APC40
Akai LPK25
Macbook pro w/ Live8 & Logic9

I plan on getting these items:
-Midi controller: I feel like the LPK25 is a bit too basic for producing so I need something a little more advanced. Should I get the MPK25 or m-audio oxygen 49?

-Audio interface: when you guys recommend the Fast track pro, is it this one? http://www.guitarcenter.com/M-Audio-...67-i1474272.gc

Thanks for any and all help!