Thanks for the replys everyone. I still think it is a hazzard, especially in the event of a collision. I ended up buying the Battery Doctor switch through Auto Zone. It was under $30, and specs at 12 volts are:
Continuous: 300 amps
Cranking: 700 amps/10 seconds
Intermittent: 1000 amps/5 seconds
If I ever actually use my winch for recovery, I'll be sure to keep an eye on the switch and also make sure to pause for a few seconds every 10 seconds if I'm pulling anywhere close to a fully loaded pull.
Mouse: Based on the reply you got from Warn, I guess they don't consider shorting the cable out in an accident as something to worry about.
Bob: I like the connector idea, but my preference would be to put it as close to the battery as possible as the cables running from the battery are still at risk in the event of a front end collision. Your set up looks convenient, but doesn't address the safety issue I was concerned about.
Wubicon: My thoughts exactly.
Here is the switch installed. I know it's not the best way to install it, but I was surprised at how few places there are to properly mount it, so for now, I'm simply supporting it with the 2 gage cables running into and out of it. The switch has two large posts inside and a non-conductive back plate, so the contacts are well protected: