First I'd set aside $4,000 for when the new Kurzweil comes out, hopefully it'll replace my EX-5, my PC-88, AND my Nord Lead on stage.
The rest will replace my diesel-powered DAW (Mac g-3 with OS 8.6, and all Opcode software/hardware). I'm thinking Intel-based Mac, Mackie Onyx w/Mackie's DAW software, and hopefully a control surface of some sort.
If there's enough $$ left I'd sure like the Nord Stage Compact, to replace my Electro AND have Nord's cool pitchstick/analog synth to go with my new Kurzweil, whatever it'll be.
This exercise is fun until I take my eyes off the screen and look around my home studio...