Multiple Wireless Lav Mic's For live events

What would you suggest for a multiple wireless lava mic setup for live events? I generally shot weddings and I want to be able to get clean audio of the bride, groom, officiant, and whoever else may need miking. Is there a system that comes with multiple transmitters and one receiver?

Right now I use a Sony UWP wireless transmitter and receiver running into one of my 7Ds. I only mic the groom and this has worked most of the time. But, when I shoot a wedding where the couple sit aside, or across the room, while the officiant delivers a message the audio is muffled and bad. I also use a H4n taking a feed from the venue's soundboard running into a DI box (which is the only way I found to get the D*&% thing to get decent audio, grrr!). But some times venues and church's have their sound boards locked up or not accessible so I have to rely on my single Sony Lav.

Suggestions? What is your set up? Thank you.

One man with courage makes a majority.

Canon 7D
Sony Vegas Pro 11
Adobe CS6 Master Suite

HI
I occasionally do weddings and have this attitude.

If you speak, you wear a mic.
typical setup
1) rifle mic on floor pointing at B&G for ceremony (NEVER RELY ON A RADIO 100%)
2) radio mic on Groom
3) radio mic on vicar/official
3) radio mic on lectern for readings
4) zoom recorder nearby as a failsafe or to record choir in stereo

Speeches
Everyone who makes a speech wears a radio mic AND the toast master as they speak too.

Evening
Radio link the bands PA desk back to all cameras with a mix between the PA sound on camera mic and direct feed in post.

The only answer if you want to do the audio properly is to spend the money.

Peter

Post Production Dubbing Mixer