Hi James
If you are anywhere near Blackpool, on the 11-18 May is the Blackpool keyboard Festival which this year has open days (for non festival residents) on the Sunday and Wednesday, and as the S900 will most likely be on show you will be able to try it, also they normally do special deals for those who attend or visit the Festival.
It may also be shown at the Pakefield Festival in a couple of weeks, so SZ members who are going will be able to give you a first hand report.

Bill