Bought this Bodyglove Portable DVD Player Case -Scuba II Black through one of the recommendation in the Eee PC forum.
http://www.argos.co.uk/static/Product/partNumber/5347452/Trail/searchtext%3EPORTABLE+DVD+CASE.htm
I remove all the straps – just use the top handle.
The Sammy sits inside snugly with the velcro holding it in place.
The cables and mouse are stores in the front zip pocket.
Was using it in Singapore & Malaysia over the holiday period. Looked around but could not find a better bag than what I got.