Derek,
If you're noticing his eyes starting to form a blue haze he'll shed soon! The eyes will be blue for about 3 days and then he will shed his eye caps. Wait a few days after that and he will shed his skin. You might want to mist him lightly with some water in the meantime, but don't overdo it. I did once, and we had a rather messy shed (good, but messy because there was too much moisture).
Here's an interesting tidbit:
If you can manage to actually catch your snake while it's in the shedding process like I do, turn off TV, stereo and listen closely to the tank...it sounds like Rice Krispies!!! LOL! Honestly!