DP bag is great comes with a map pocket and a removeable waterproof cover.You won't get loads in,i can get 1pair lightweight trousers,3 pairs of boxers, 2 pairs of socks,2 pairs t-shirts,toothbrush & toothpaste and digi camera,mobile and docs and wallet.But it takes a degree in folding to get it all in.I've seen them occasionally on eBay usually listed in EU for about £50-60 or new from a dealers for a touch under £130.If you get really stuck i might be able to lend you mine if you sort out the postage.
[Edited on 10-3-2006 by swannymere]