Simon, while you might be happy carting several kilos of dslr around on a bike, for most a decent compact is more than adequate. My Lumix TZ3 will print up to A4 quite happily, which for the great majority of the camera toting public is all they want. Plus, I can get away with taking pics at most gigs I go to, whereas security would have words if I stood there at the front with a Nikon D700. I’ve even had problems with using a Nikon Coolpix 5700 bridge camera, which is itself a pain to carry on the bike, as it has to go in my pack, while the Lumix will sit in a small pouch attached to the shoulder strap. As far as shutter lag is concerned, I can’t honestly say I’ve noticed it with the Lumix, and for quick snapshots, well, you’re not exactly doing high-speed sports photography, so even a fraction of a second lag is hardly going to compromise a picture, is it?