Number one son and I are trying to track down one of these:

http://www.porta-charge.co.uk/accessory67/

They have been out in the 'states for a while and now they have made it over to the UK. The neat thing about this particular device is that not only do you get to play all those good C64 games, but you can also hack the thing to add a keyboard and even a disk drive. Presto, you have a machine you can even write Basic programs on and store them. These people have a whole article given over to hacking this amazing device.

http://www.orrville.net/dtvhacking/

Today we found that the UK catalogue store Argos have them advertised.

But not in stock as of yet...