MIDI Controller / Keyboard Piano Questions!!!

Long time DJ here (trance, house mixer) that is getting into music production now just getting my feet wet with logic express.

As well as learning production, I am also going to learn to play the piano.

I would like to learn to play the piano by itself, normal piano music, playing the piano solo.

I would also like to learn how to integrate piano music with the music I produce - also using the piano as a MIDI controller for logic express.

I have looked at some M-Audio keyboards as well as some others and am not sure what to get.

I am willing to spend up to $1200-$1400 on the keyboard and am wanting something along these lines:

1. Weighted keys or hammer keys so it feels like a real keyboard
2. Something high end - I always buy high end equipment for my studio
3. Built in speakers is not important on the keyboard - it seems most high end ones do not have them anyway
4. 88 keys for sure, i want to learn the full piano for my trance productions
5. I would like to stick with Yamaha and Roland if possible
6. USB connectivity perferrably or can I buy a high end keyboard that just has MIDI out and buy a MIDI to USB converter to interface with Logic?

I guess 6 is the most important question, many keyboards I have looked at have USB and MIDI, I know I can go from MIDI to USB to the computer? but would rather have a direct USB interface from the keyboard to the computer - i was looking at the Yamaha CP33 and it states:

USB for computer connectivity

does that mean it can send MIDI through USB?

Please advise? I think I am on the right track but just want a really nice high end keyboard to learn on that will work in my music production as well.

Thanks,

~ssdj