Hi Timothy, welcome to the board and congratulations on the new dog!
Don't worry, it's never too late to start the ground work and training. The pack and rank issues are the easiest things to solve since they are all instinctive behaviours for the dog, as opposed to training, where you actually have to teach and educate the dog.
Your wife can certainly do the ground work herself, before you get back. She needs to have the dog respect her and look to her as a higher ranking member of the pack.
As for the training, it's probably best to have one person be the trainer. Once the dog is solid on the commands, you can teach others in your family how to give the commands, corrections, praise etc. so everyone is perfectly consistent.
Being trained by multiple people at the same time can confuse a dog.
Keep the dog inside the house in a crate at night. He may not like it and bark his head off, but Ed is clear on how you deal with that. The dog will learn, as long as you stay firm.
The pulling your wife along on walks is also an easy thing to correct. Get a prong collar for the dog, fit it properly, and the problem should be solved.
Here's Ed's article on how to fit the prong:
http://www.leerburg.com/fit-prong.htm
As Connie mentioned, the basic obedience DVD has excellent advice on it for first-time trainers (heck, even if you've trained dogs before it'll come in handy!).
The initial stages of training are lots of fun so I'm sure you and your dog will both enjoy it. It's all done with motivation, food and play. It's a great way to build a bond with a new dog
Here's the ground work article, if you haven't found it yet:
http://www.leerburg.com/groundwork.htm
Also, your wife should probably read this as well, since she's the one currently dealing with walking the dog:
http://www.leerburg.com/dogparks.htm
An important part of being a pack leader is to stay in control during walks. This means keeping the dog on a leash (or long line), not allowing him to pull on the leash, and it's also the pack leader's responsibility to drive away strange dogs.
You can't earn a dog's respect without doing these things.
The prong collar is usually enough to self-correct a dog that pulls. It's much more humane and effective than a choke collar.
Make sure it's fitted properly though; it should fit snugly up on the neck, behind the dog's ears. If it hangs low on the neck, it won't work.
If the dog continues to pull with the prong collar on, here's what to do:
(1) dog is pulling
(2) you say "NO" in a calm firm voice (not a mad voice)
(3) if the dog backs off, fine, give calm praise
(4) if the dog ignores your "NO" and keeps pulling, give a quick pop or jerk of the leash
(5) if the dog reacts and stops pulling, calm praise
(6) if the dog ignores the correction, then the correction wasn't hard enough. Let's say you started with a level 3 prong correction (on a scale of 1 to 10) and the dog ignored you. You would then repeat the "NO" and this time, give a level 7 or 8 correction
(7) the dog should give a visible response by yelping and backing off on the leash pulling
Dogs that have respect for their pack leaders don't pull on the leash and they know this. If you give a hard enough correction, the dog will instinctively understand that you're reenforcing your position as a pack leader and he will behave himself on walks.
I'd also recommend getting the following DVD:
http://www.leerburg.com/301.htm
or at least reading the following article on dominance:
http://www.leerburg.com/dominac2.htm
Your dog may not be dominant at this point, but Ed has super insight into dog behaviour and issues of pack order and rank. It's amazing how much you will improve your bond with your dog after following these steps. Earning the dog's respect with fair but strong leadership is the best thing you can do for him
And finally, I know this is a lot to absorb at once, but here's the most important thing you can do for your new dog's health:
http://www.leerburg.com/articles.htm#feed
Don't worry if it's a bit of an information overload at this point. We all feel that way when we first come across this website, haha.
Just take it all in and eventually you will discover how wonderful and fun it is to raise and train a dog the right way.
Best of luck, I hope you keep us updated on the progress that you and your wife make with your new family member