If you don't want to pay more than 2500 $US you will not get a Kurzweil synth...

If you only want to get a good piano sound you may want to have a yamaha e-piano. I've heard their good piano abilities.
Hey cool! I'm a hard- and software engineer in the mid 30's too. I'm also loving the 70's rock and the 80's metal. I had also played a Kawai but in the version K1 before I went to Yamaha V-50 and Kurzweil K2000.
Roland's and Korg's synths are also smoothable I think so...

Good luck on your quest!
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Greetings from Frankfurt (Germany),
Sheriff ;-)
[This message has been edited by Sheriff (edited 03-13-2005).]