Reply to Keyboard for production with Ableton

I have just entered the world of production through Ableton. I have found using the computer keyboard a bit of a pain and was believeing about getting a midi keyboard. I need something that is small & compact as desk space is at a minimum. I have no experience in mapping therefore the keyboard would also need to be pretty much plug and play. I have been looking at the Korg Nano Key, Akai LPK25 & M-Audio Oxygen 25.

Can anyone advise if I am looking at the correct type of keyboards and which one I should go for.

thanks