George recommended a Casio WK 8000, and I bought it from him last year. It was $595, I believe, and does the job for me. It's in the back of my warehouse, and I use it to arrange film score roughs or rehearse new material.
Of course, I'm also happy with the NP-30 I bought from George this year ($299.00). For what I use it for, a couple of times a week, in the corner of my office, it does the trick. Not 88 keys, but it's neat!
Hope you find what works for you. George is a big help when it comes to recommending equipment, selling for a fair price and being available for follow-up.
Russ