two mini ipods + speakers

[Andr3w]

Hey, my parents are wanting an ipod each to take on holiday and one set of speakers that will charge while playing.

I suggested 2 ipod mini's at 4GB (this is ample for them), and some speakers

Firstly - getting it online will proberly be cheaper, but where would you say the cheapest place to get this is?
Secondly - What are the best /cheapest (around £40-$50) speakers for an ipod that will charge the pod while playing

Thanks