If you want a ton (Read 1000's) of third party and Factory styles in Be Bop or Bossa (or any style) the Yamaha has the best library amd the most free styles by far and a lot of user websites.

Here is one where you can download hundreds of styles free http://www.yamahapkowner.com/index.php?page_id=3

You can buy a new Tyros 2 for $2500 or less depending on the dealer now. A Roland RD700 would make a great addition.

[This message has been edited by Kingfrog (edited 10-18-2008).]
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Yamaha Tyros 4
Yamaha Motif XS8
Roland RD700
Casio PX-330
Martin DC Aura
Breedlove ATlas Solo
Bose MOD II PA