70 is not bad, but it is not necessarily great either. Where you do you play most often? The website FragLove which dghost pointed out has several French servers, so if you can get a game going there you'll have a much lower ping, most likely.
You can also download QTracker (
http://www.qtracker.com/) and filter servers so only French ones show up, or French and German servers or w/e is desired. It`s definitely one of the best server finding tools you can grab imo.
As for teams - there are a lot of active clans in QL, but not so many playing nowadays in Q3, particularly the latest release. (1.32) The only remaining teams that are in Q3 nowadays are either very obscure, use a low point release, or are very restrictive. I could be wrong, but from what I have seen the modern Q3 scene mainly consists of unaffiliated players. You can, however, use pickup services such as #cpmpickup to find games, which is a gathering of several players who sign up on an IRC channel to play games. It is very efficient, fast, and fun, but watch out for the elitist attitude some of the players have there.
Hope that helps.
