Alpkit

My bro has just recommended this site for drybags, sleeping bags, etc - http://www.alpkit.com/shop

Bikes on train

These articles seem to indicate you can take your bike on a train http://bikeaccess.net/bikeaccess/Articles_db.cfm?Search=box%2Cbag%2Ccase&Article=French%20Trains and this one http://www.mayq.com/Best_european_trips/Touring4_trains_and_bikes.htm

Corail lunea?

Sleepr train from Narbonne, close to Bezier? Gets us up to Paris for under £20 if we book early enough. I've never travelled by sleeper but would love to give it a go.

Search for corail lunea sleeper train or details. I can't add the link.