Lately I've devoted most of my time and energy in my piano playing, and the guitar has been put on a hold. I figured I should get rid of the old crappy Roland keyboard, and get something of a decent quality.

I've had a look at the Casio Privia 1/330PX and the Yamaha P85, but I'm not sure if that's what I'm looking for. As I mentioned I need a relatively cheap practice piano, and because I don't plan to play wearing headphones I'd like something with a decent sound, although that isn't all that important.

Furthermore, do you recommend any good European online shops that have good prices?

*Bump*

What to look for? The "feel" of the key action.

The keys are the number one thing to look for.
But you will have to play each of them for more then just a few minutes. I think Casio has a bit more weight in the action than the GHS keys used on the P85. If you move up the Yamaha line you find the "GH" keys are different. But between the P85 and P155 the price doubles.

Yamaha has a great reputation and the build quality might be better but the technical specifications of the PX330 are better. So you have to try each.