the Korg PA588 looks exactly what I'd like to get. Too bad that I can't even afford a new one.

Diki,you've read my mind....I too thought to buy a 2 tier stand and to place a good arranger on top with a good keyboard on the bottom. Nowadays a CASIO dpc 100 (or something like that) that seems it weights only 12 kilos. May be a misprint.

The Yamaha S900 seems a good candidate too...maybe a PSR 3000 would do as well. The idea of having 2 keyboards seems really the most financially effective idea....

these forums are the best