cleaning radiator

I went up to the high desert this weekend and on the way up I went through the nastiest swarm of bugs I've ever seen. It sounded like rain hitting the truck for about 15 miles. It must be all of the wild flowers. Anyway, I finally got the exterior clean and took a look that the radiator and the front is caked with bugs. It's pretty cramped in there and I was wondering if there is an easy way of cleaning it without completely removing it from the truck? I'm worried about damaging the fins. Also, is there any kind of screen that someone can recommend to keep this from happening in the future, or would a billet grille help? Thanks.

Brandon