I'm planning on buying a synthesizer workstation but I just don't know which one to get . I have several in mind so I would appreciate feedback on the following synths . Tell me a little something about each in terms of their ease of use , features and sound quality .

1.Korg Triton LE
2.Yamaha Motif
3.Roland Fantom Xa


There are also the more expensive models the Motif ES , Fantom X and Korg Triton Extreme . What additional features would they have that would warrant the much steeper asking price ? Should I as a beginner even bother with them ?


Finally what kind of player and music would require 76 key or 88 key versions of these synths ?

Any help would be appreciated .