Has anyone found a cell signal booster for car/home?

I have found one from Mito Corp, I think it is from Richardson Electronics, I have 0 experience with it.

My objective is to find a cell signal booster that supports CDMA/1X and/or EV-DO services.

Carrier is Bell Mobility (Canada).

The car boosters seem to increase the signal to 3 watts from .3 watts.

Does anyone have experience with this type of technology?

Any suggestions?

Thank You