I put a Streamlight TLR-1 on my shotgun. I really like it and think that Streamlight is a good value. While I haven't tried a remote switch, I don't particularly like the idea of running neked wires down the stock. It may work very well and Streamlight offers a remote switch for its lights. In my case the switch on the back of the light falls right where my left hand grips the stock, so it's almost a natural to turn on the light. No remote required.
You can always get a light without the remote switch then upgrade it if you think you need it.