Secure storage during weddings for wedding photographers

[haring]

I would like to buy a bag in which I can securely store my lenses and back up cameras during weddings. What do you use?
I know assistant is the solution who can watch your bag but a lot of time is is just not feasable. Also, I can carry all the cameras and the lenses on me but it is impractical a lot of times...
What I am looking for is something which is hard to take from the without somebody noticing it and I can lock it.
Somebody suggested that I can get bags which have an alarm...
It would be great if I didn't have to worry about my stuff all the time.

I appreciate your help!

[Ken Bennett]

I use a Think Tank Photo rolling case (Airport International.) Their cases have locking zippers, and a built-in cable lock that can be quickly wrapped around a column or a large table leg and locked. Works very well.

I also have a small carry-on size Pelican rolling hard case where I keep my speedlight kit. I have a small cable and a padlock, which would also work for location security, though I have not used it that way. The Pelican is much less expensive than the TTP case, but it also has less usable room inside in my experience.

[haring]

Thanks!