Crux? Never seen them. UK only? I'm in the US and can't seem to find a dealer at this moment.
I use an Osprey Waypoint for travel and have been extremely happy with them, thus the Osprey is the leading choice. Although, I admit, I completely forgot about Lowe.
The place I work deals Marmot, Arc'teryx, North Face and Mammut, so I can get deals on their gear. Not sure if we have Black Diamond or not. That said, I do love my Osprey packs....
I'll have to look into Lowe though.
I guess my biggest concern was the tripod. Currently operating on a Benro travel angel. And it is great except that the head doesn't lock on....