Camera recommendations for Archos units

[SquareDaff]

I've been looking at helmet cams and, up until now, have been looking at stand alone units. However whilst trawling ebay for an archos and dock for my Father in Law I spotted a mention of a helmet cam for an Archos.

Does anyone out there use this setup for cycling? If so, could you recommend any specific camera? The Archos I use is is a 605WiFi.