Phil your getting fickled...
Don't even think about CTK-731...
Get the low end wk-3000 or wk-3500...
Or look for a psr540 or a psr550..
A psr540 on ebay just went for $250
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=38091&item=3758098141&rd=1&ssPageName=WDVW And a psr550 went for $327
Both great boards and imo better than the WK.. although some fokls don't agree...
here's a bid for a 540 and a bid for a 550
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=38091&item=3762006276&rd=1&ssPageName=WDVW http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=38091&item=3761504931&rd=1&ssPageName=WDVW Although if you just want to get your feet wet you can get the psr292... great board for the bucks and once you figure out if you like it or not put it up on ebay... you'll likely loose 30 bucks, but that's a hell of a nice rental fee for 6 months of trying it out..
As far as cool edit 2 which now is adobe audition 1.5...I suggest you go to
http://www.adobe.com They have wav loops you can download and you could do a whole song with those loops using your cool edit 2... Anyway... Yes you could layer your tracks from the keyboard in wave format to Cool Edit and you have a 128 tracks and effects to mess with... But you better have a big hard drive and a fast processor... So if you take that path you better find the keyboard with the best sounds... Cause cool edit is not a midi program... It going to record the sound that comes out of the board...
Just my cents..
DJ