Hi, I'm new here. I have owned over 20 keyboards in the past. I am in the process of selling my keyboards and replacing them with only one keyboard. I'm looking for a keyboard with 76 or more keys that is simple to use with a sequencer, a REAL sampled grand, split/dual, midi, maybe a CD burner or similar to store my performances, and most of all- it must be a ROLAND. Any suggestions?