I put a post on about a very brief play on a PA60. My opinions match those posted previously.

In summary the 3k has the best bangs-per-buck so long as you are not put off by the key feel which is noticably inferior to the Korg. The styles on the Korg are a bit more complex; it is personal opinion as to whether this is good or bad. The Korg "Fills" and "Endings" do not match the styles very well, on some it sounds like a different band has turned up just to do the fills! Also the Korg OS is less easy to use. The Korg dual sequencer is a nice idea but the Yamaha "Instant play" feature means that unless you have an absolute neccesity to crossfade midi files you aren't going to find the lack of a second sequncer a big problem.

So I'm still going to get a PSR3000.