help needed with surround sound speakers

[rallyfan_1986]

Hi, I currently own a laptop computer and a NW-HD3 mp3 player, and im looking for some surround sound speakers (the type with 5 small speakers and a subwoofer) that i can connect to both my computer and mp3 player. they both have a 3.5mm jack plug, and my mp3 player has a line out on it, therefor i will be mainly using them to listen to music.

I have a budget of about £50, but idealy i would like to spend a bit less.

I have been looking at :

http://ws4.richersounds.com/showprod...pid=ACOU-AS150

and:

http://www.ebuyer.com/customer/produ...duct_uid=73661


Any help and advice would be greatly appreciated, thanks