i believe psr3000 is a good choice if you can afford more than what you said. i am not gonna say otherwise.
but for the money you have, my personal pick is korg pa50.
if you will use the keyboard mostly for playing piano and once in a while something else, you might as well consider exr 7.

so, what to do? give it a try, take advantage of 30 days trial time, and test also the resistance to your use!
go for it!