I started plowing this year with my quad, so I added a few ambers so I was more visible. I bought 2 Whelen OS's for the sides and 2 Sirenet 6 LED grille lights. I think it came out ok. Here is a short video.
http://www.youtube.com/watch?v=GT2M1cpjNXw
http://www.youtube.com/watch?v=GT2M1cpjNXw