Beaky.......I've been considering buying the Casio 350 myself. But I've been undecided between that and the Yamaha series, particularly the 155 model (great sound but somewhat heavy to carry). Have you compared the two before your purchase?
In the meantime, I'm waiting for the PX-5S to make it's way into the stores, but the price is really up there compared to the lesser Privia models.