Doc-Z
Most of my playing in years past had been done on piano with 88 keys. Thru the years I've had a variety of instruments Rhodes suitcase, Kurzweil k1200. Bottom line was I always played instruments with 73 or more keys. Last October I decided after too many of years of just playing at home decided to start playing as a OMB. I tried the 88 key DGX 505, but that just didn't have it, I then purchased a Casio Privia PX400r. Had a nice acoustic piano action, but still not enough styles and features to satisfy what I really needed. Fast forward to late April this year I purchased a PSR 3000. I had concerns that 61 keys would just not cut it. WRONG. I quickly adjusted to the action and 61 keys and absolutley love the 3000. When I'm hired for the occasional wedding cocktail hour where I'm not depending on the arranger features, I use the Casio with the 88 keys.
As Gary Diamond says," Buy the 3000 and don't ever look back." You may want to also check out
http://www.psrtutorial.com