Searching for a Digital Piano?

So, I would love to buy a digital piano, but I'm kind of cash strapped at the moment, so I'm really looking for something under $500.  I'm going to document my search here, for anyone who might care, or may have some hints.

I'm looking at Yamaha instruments first.  Primarily at these two models:  NP-30 & P70

I've just read a really nice review of the NP-30.  I might go with this.  But I will keep looking.  Does anyone have any suggestions?