First of all, congratulations and welcome!
I don't know how much handling is too much, but I'm certain someone will chime in with that shortly. For now, though, give him a few days to get settled into his new habitat. There's really no reason to handle him for about three days - let him destres.
If your baby doesn't eat right away, he might be distracted. Try putting a towel over it and leaving him alone for an hour. If he still hasn't eaten at that point, it is okay* to leave him overnight to work on it. *As long as you're feeding f/t. If you're feeding live, then never leave him alone with anything weaned. Right now, he's eating pinkies, so it's less of a problem, but an adult mouse or rat can cause a snake serious injury. You should wait until after you've let him settle in to feed him. He can go quite a while without food without hurting himself, and it'll be less stressful for him if he's not having to cope with a new house and a new diner all at once.
Try the Association of Reptile & Amphibian Veterinarians for a local herp-vet. Their website is at
www.arav.org.
If you haven't already, pick up a copy of Kathy Love's
Corn Snake Manual or the updated
Comprehensive Owner's Guide. Both are available on her website,
http://www.corn-utopia.com/. This book addresses most husbandry issues you might encounter from a pretty experienced point of view.
For other specific questions, try searching the threads in these forums, and if you fail to find the answers you're looking for, post your questions. The responses tend to be rich and prompt in most cases.
Some shorthand you'll see around here:
x.x.x = number/sex of animals = males.females.unsexed - I have 3.3.13 right now with my hatchlings on hand.
het = heterozygous - a genetics term that probably won't be important to you for a while but means that the animal carries an inheritable set of genes for that trait.
f/t = frozen/thawed
uth = under tank heater/heatsource - cornsnakes like/need belly heat, and this is a great way to give it to them - usually in the form of heat mats.
GBB = grand bubble burster - joejr14 - a nickname for one user.
Those are all that come to mind at the moment.

Have fun with your new baby!