Multiple back ends on raspberry pi's

Hi,

Having read various threads regarding raspberry pi's struggling with multiple tuners & users, I was thinking of running a multiple pi setup:
- 2x raspberry pi's, each with a single DVB-S tuner
- 1x raspberry pi for the front end
- 1x NAS drive for storage

Is it possible to set up this configuration so the 2 pi's with tuners co-operate correctly with the tuners?

Cheers