Fireking99:
I'd check in your manual to see what capability the P250 has for up/downloading and what it can utilize. You could use the USB to connect to a computer, use a soft sequencer, soft synths, and make it the center of your home studio.
I've been using Smartmedia cards to back up my MOTIF ES User/performance banks, and will also use it for storing songs. Everything can be done on the MOTIF ES, although I could connect it to a PC for the editor or things. But I can work with the small screen on the ES just fine.
Mike T.
_________________________
Yamaha Motif ES8, Alesis Ion, Prophet 5 Rev 3.2, 1979 Rhodes Suit case 73 Piano, Arp Odyssey Mk III, Oberheim DMX, Roland R-70 Drum Machine, Digitech Vocalist. Lots of Amps, mixers, PA speakers!