Re Martinfocazio Thoughts on Packs and bags
I must agree with you there finding the best pack is very hard task indeed. You have not specified the capacity required therefore but I am assuming something around 30-50 Litres. The following from the Karrimor Sabre and Delta range are excellent. They are robust and are very good quality kit with Mil spec additions which may be useful. They are actually very comfortable in use also. They also are available in a Black and British DPM.
You maybe interested in the Karrimor Delta 35
or for a more versatile pack you may be interested in the Karrimor Sabre 45
The last image shows that additional PLCE compatible 12.5 litre pouches can be added giving an extra 25 litres.
Sabre 45 in DPM
To see the whole range
click here Additional dry bags designed to fit the whole range are also available although for complete waterproof dry bags I would probably go for the range made by Ortlieb.
Hope this helps.