My idea is same as colleagues up.
I'm having LIONSTRACS MEDIASTATION X76.
This is synthesizer for future. You can play with as computer. Today you play in NI KONTAKT, Tomorrow in AKAI S3000, Legacy Korg e.t.c. What you want. Only you must change software.
Keyboard is working on LINUX but all Windows programs are working as VST and you can play them in any time and in different levels. (midi and audio connections via jacks- this is similar to have more modules like JV 1080, K2000R etc) I tried severally VST (Virtual instruments) and now I'm really happy because I'm having freedom. Also internal sounds are good. For start and fast playing they are fantastic. Internal operating system of MS is working fast and good. This is defiantly new way for future and live playing.
More info on:
http://www.lionstracs.com/site/