I used to play classic CS (started in beta 6.7, year 2000 summer holidays before I started uni) loads, played in quite a good team up to and including CS 1.6, had a few good results at various bigger tournaments back then (LANded LAN in Oxford, few of the early Insomnia series LANs). Then UT2003 arrived and I pretty much dropped CS entirely.
Might get back into it one day, I used to be bloody good though so it'll be frustrating not being able to shoot anymore!