I'm in Paris right now with my track bike and I'd really like to try some riding in a velodrome. I hear France is one of the top spots for track racing, but none of the roadies I ask can tell me anything about it. I am going to be spending some time in Paris and Grenoble so if anybody knows any velodromes that an amateur can race at I'd love to know!
If I find one I'll be sure to take pics!
Grenoble has an indoor track. They hold a 6 day there.
EDIT check the link, but beware that some of the tracks listed have been pulled down. I know from looking at the Aussie list that the list is not fully extensive either. Have fun in France!