hi all
i've been think of buying a keyboard for ages now and i'm finally going to take the plunge, i'm a totall beginner and i'm starting from scratch and i was hoping to get a few recomendations for a keyboard, i'm mainly interested in learning piano but i don't have the space for one so it will have to be a keyboard or digital piano.
i've got a limited budget, the ones that i've seen in my price range are a casio wk-3200 or i could stretch to a casio wk-3700, i've also got the chance of a secondhand yamaha dx 500 for about the same price as the wk-3200 would cost me new, also any recomendations on a good book or cd on learning to play.

many thanks