Hi Lydia, just following up on the R4 conversation.
They are "officially" for downloading films etc but there are sites where you can unofficially download games (if you know what I mean...

)
You can buy the R4DS from Amazon or type it into google and you should get some other options. Its around £14 without the little micro SD card - think that takes it to about £20-25 not quite sure - about the price of one game though.
To get the games, you need to go to one of these unofficial games websites (
NDS-Roms.com - The #1 Source for Nintendo DS Games!) is one that I have heard about but seems to have been down the last few days - so not sure if they are still going.
There might be others too. The downloading is really easy - and if you get one, then pm me your mobile and I can talk you through it.
Glad grandad is doing ok. That memory foam chair sounds great. xx