Anyone use a winch power disconnect?

I just hooked up a winch and I was wondering if this is overkill or a god idea? I have direct ground to the battery hooked up also. What kind did you guys go with also? I see the marine grade type on ebay and stuff but I am not sure what amperage I can be looking at for the proper one. I am running a Ramsey RE12000 winch which can pull some serious amps. Thanks for any help!

Heres a recent thread.Personally I prefer welding connections,they are definately rated for more amps!
http://www.naxja.org/forum/showthread.php?t=70039

5-90 makes custom battery cables out of some high quality stuff. i bet he could tell you exactly what you need. i know 2 members who use his cable upgrade and they say their volt-meter is even running higher now.

here is his thread about his cables.
http://www.naxja.org/forum/showthread.php?t=46185

Check out this link for how I did a disconnect, why, and part numbers. It might be what you are looking for in the long run...way better than welding connections.
http://www.ultimatejeep.com/Forums/viewtopic/t=8238.html

I use the warn power interupt kit, which is a basically another solenoid that is switched.... I had no need for my winch to get power all the time since I dd my rig.