Hey I am in the market for a keyboard... I am not interested in a Synth, only the best sounding grand piano sound on the market... hehe... I am currently really interested in the Roland RD-700... does anyone here have one or have any experience with this keyboard? I want to know how it compares to the big dogs (Korg, Kurzweil, Yamha, etc.) in the area of feel and pure piano sound... thanks!