I tried the M50 and the M3 and i think the M50 will be a real kick for you if you can accept not having after touch, it have real nice sounds and even the KARMA engine if you buy the software addons.

Only negative sides for a yammaha user is that the conventionnal sounds like brass,guitar etc.. are more dull that Yammie with their full articulations stuff but for me i prefer it like that as i want to add the effect myself.

I choose the M3 as i'm really tripping on aftertouch and i was able to budget it.

Oh the M50 keys are much like the psr spongy feeling if you like that.

There's also the Yamaha Mo6 or Mo8 that have more yammie sounds (they tell that the sounds comes fromt he Motif flagship so it's the sounds you should be use to)

Good Luck
MJ

[This message has been edited by Mystic Jammer (edited 02-02-2010).]