The Roland RD700 will not take the Roland JV cards. Only the larger new 64MB SRX cards work in it.
I would also recommend the newly released P120 and P120S Yamaha's. These are newly remade P80 with built in monitor speakers and beautiful wood finishes. The weight is still only 40 lbs. and Yamaha has added Vibes, Clavs, Guitars and two more bass sounds. They've also addes a second pedal option, fixed volume outputs as well as outputs controlled by the master volume and three song memory instead of one. They sell for around $1100.00 which is just $200.00 more than the P80. A very popular new model.
George Kaye
Kaye's Music Scene
Reseda, California