Snakes bother a lot of people, but I like them. Undoubtedly it's because of the way they move and their lack of legs. I suppose the forked tongue doesn't help either. However, these very things make them good subjects for photographs. Of course, that's just my opinion.
Unfortunately, snakes are not particularly cooperative. Although I see a lot of them in the areas I hike, they're usually on the move and usually manage to hide in the grass or bushes before I can fire off a picture. The other complication is that animal pictures look best when the camera is at eye-level with the animal. With snakes, that means getting really close to the ground. A difficult thing to do with an SLR.