Gents...when i gig with my duo i use a pa900 and a psr 910...when i do a jazz solo gig i use my pa900 with my mox8 or vr09...both rigs have great possiblities - just depends on the event type....stevec
mox8, pa900, psr 910, dgx 650, microarranger and vr09
I think its a great setup... Soundwise yamaha and korg add to eachother... Where Yamaha in my opinion shines with acoustic and naturall sounds, thats where Korg shines in pad and synth sounds..
I think having two keyboards of different brands can certainly add a lot sound diversity. Thats however the main reason keeping me from adding an MOXF to my Tyros5... Because as hinted by others, MOXF is an awesome beast, almost a Motif Xf, but i think the Korg Krome and espescially the Roland FA-08 might add more that i dont allready have at the same price