I went last year and as Mark said i doubt your come away with any earth shattering knowledge but it is great to see and handle gear you've got your eye on or get demos on things. As your about to do your first wedding there is quite a lot to cater for that side of the industry so you might get some ideas on presenting your work to the happy couple. If your just up the road I'd say its well worth a look, and you want to try out lenses for your camera take your body along, they do have bodies but it can get busy and you might have to wait about.
Trade visitors get in for free and non-trade entry is £6 and it is definitely worth registering and/or buying buying your tickets before hand, I queued for about 50 min's last year
