If you decide to keep your dog at home, there are a couple of professional pet sitter organizations – one is Pet Sitters International. You can search for a sitter in your area. They are trained and expereinced. the down side is that they will come in and play with your dog and walk your dog, but won't be there all of the time. It would be gerat to have someone you know and trust who could housesit while you're away.
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I would suggest installing wire under the fence for the digging issue, or an invisible fence around the fence to keep him from getting close enough to dig under. There are also behavior modifiers at http://www.innotek.net.
I realize what I've suggested sounds cruel, but I put in an invisible fence in our front yard. My lab, Nestle, would bolt each time I answered the front door and we live close to a busy street. Trust me, she got shocked two times, and now doesn't even need to wear the collar.
I'd rather have my dog alive, than stand by and wait for the inevitable.
I hope this helps.

Look up http://www.care.com. You can post an ad within a certain mileage of your home, see what people generally charge, and ask if someone will housesit your dog.
Some people have background checks on themselves.
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Three dogs and an adoption counselor for a no-kill shelter for dogs & cats.

If your dog is a digger, you should probably just board him at the vet's. A good vets kennel should be safe, he is close to help if he does anything stupid, and he should be fine no matter what the entertainment or lack thereof – right now, you need him just mainly to be safe. He may even have fun.

Later, when you have time, you should consider installing an electric radio fencewire inside your wooden fence – that way, he won't dig out of it, and you can have a petsitter do in-home care next time you need to go somewhere – or not. Just make sure the sitter is a mature adult, not a kid – as much as I love kids, things do happen, andthere are many questions posted here by kids who have had big problems when they were petsitting – but a professional should come by recommendation from the vet or friends, and can be very competent. It also allows your dog to stay home, which can be a lot less wear and tear.

You should just be able to leave, knowing your dog is safe, and not on the verge of escaping. A wire can do that for you, and you can also put one in the basement rafters under the front door to avoid having him bolt out to the street.

But for now, just go with the kennel, and go take care of human stuff. It'll be worth it not to worry, at least about him.

Good luck-
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