Also, if you're a computer user, check out the Alesis line. The QS6.1 is inexpensive & pretty stout, despite the company's annoying tendency to use stingy displays.
QS6's are going cheap now, not at all a bad deal if it includes all the discs.
Their synths come with librarian and SoundBridge software, the latter allowing you to import samples and use them as you would any other patch. This sweetens the deal considerably and they DO sound pretty danged good.
Thumbs-up for the XP30, too. Just FYI.