I've got a chance to buy a (PSR) 9000 Pro for $800 that is like new, mint, barely used. Is that a good deal? I'm not a real experienced keyboard user but I'm going to buy a PSR 9000 or a 9000 Pro. This is going to be for home use only. I have read some reviews on this site that say the CPU in the 9000 Pro was weak. But how does it compare to the regular PSR 9000. Please chime in asap as I'm getting ready to pull the trigger on one of these soon and I need help bad!