http://www.warn.com/truck/mounting-s..._hummer2.shtml
Switches will be the same as for any lighting set-up. There are tons of posts on the site, one fairly recent, where others and I reference many of the other posts. I'll check back when the Search is working and find it for you if no one does it before then.
UPDATE: Here you go. This thread and all the links it contains should give you what you need.
http://elcova.com/groupee/forums/a/t...1/m/9881000121