Retal, I am curious ,how old are you? i get the impression that you are quite young. The reason i ask , there is a vast amount to learn to play the piano properly and this will take many many years, the keyboard in my opinion is far easier, if you want to learn to play music just to to have fun, ie, a home player playing lots of easy songs, there are loads of shortcuts you can learn which will save you lots of time, but if you wish to play properly then it would be wise to get a good teacher.
The 3000 will give you a lot of fun because you will not be tied to the piano sounds only, there are loads and loads of different instruments to play on it, main and layers and so gives you plenty of variety,plus the accompaniments and the pads, have you tried one out in a store?

[This message has been edited by nardoni2002 (edited 02-12-2006).]