You need:
1x s-video to scart cable
1x 3.5mm to phono cable
HiFi cables is good (dpending on what you want to spend) but any Maplins etc will sort you out within a few mins.
http://www.hificables.co.uk/
http://cpc.farnell.com/jsp/home/homepage.jsp
http://www.maplin.co.uk/