Hi Beakybird
I have a PX-400R for the money I didn't think I could go wrong with it. The keys do have a good feel too for the price.
I'm also considering a PSR 3000 and I briefly tired one about 6 months ago. Seems like things like the Cool Voices and sweet sounds are far better than anything in the PX-400R.
What's your take on those compared to the Casio?