what sort of kayaks are you looking for: sea kayak, whitewater, surf, polo? the word kayak is quite broad:
http://playak.com/kayaks.php
you may want to post your request in the classifieds forum for the german speaking countries on playak:
http://playak.com/index.php?option=c...wcat&catid=121
or if you speak german, the 'kleinanzeigen' service on
http://kajak.at may also be a good starting point.
i currently have a pyranha rev for sale (almost new - chf 1100), and possibly also a riot inferno (2004 - chf 700). both are good boats for whitewater and also easy tours on limmat, reuss, thur etc, but if you're planning to paddle lakes, you'll need something with more speed...
cheers,
jeroen
http://playak.com