Hi, I also used the PSR 3000 and PA60, of course, each independently with it's own volume and sustain pedals, for almost a year I did that until I replaced my 3000 for the Tyros2, and I am still use the PA60 with my T2, soon, either the Ketron SD5 or another Korg product will replace my aging PA60.
I perform 10s-20s times every month and my audiences like that combination (me too), I did program lots of performances in the PA60(registrations), and also I use a most of the user memory (Styles), I did run out of space, and with the great feature of the Korg is that allows you to replace FACTORY styles you do NOT use, (example; Rap),I replaced with other style and so on. It works, if you make it work.
The 2 keyboards are VERY diferent, learnig how to get the most our of them, is very much like an artist (painter), this way you have more shades of color(sounds) and lots of styles in your pallete.
_________________________
mdorantes