Trident,

A truism if ever there was one !!!
However I would like to emphasis once more that the standard PA-500 though great value for money (actually I cannot think of any better value for money) is not a PA-800.Small wonder as the PA-800 is more than twice as expensive.Fortunately most corners have been cut regarding extras such as vocaliser, after touch etc. but as far as the basics are concerned the 500 series boast the same samples with the exeption of the RNC samples, alas the better ones......
One of the reasons as I explained earlier on for me to switch to the 500musikant version.
As far as programmability is concerned though I cannot think of any keyboard in whatever price range to beat the PA's.........