any other suggestions... maybe pertaining to hound dogs?
If your wife is allergic, have her come spend time with the individual dog before adopting. I notice that I'm more allergic to some dogs than others, even among littermates, and everyone's different in how they'll react. For me, hypoallergenic dogs are just as bad as any other. Some of my allergic friends swear long-haired dogs are better for them, but not for me.
As for hounds, I've had Rhodesian Ridgebacks (mixes and purebreds) in the past and been very happy. Would be glad to talk about them. Weimeraners are pretty similar in just about everything but color, so I'd second that recommendation as well. I hear Thai Ridgebacks are also similar, but they don't often turn up in shelters, and I've never actually cared for one. Dalmatians have tended to be one-person dogs, in my experience. It's a shame you can't get pit bulls, Rotties, or Dobermans... I've had good experiences with all. They're only as dangerous as any other dog can be--I've run across violent examples of all sorts of breeds.
They're not hounds, but it's also hard to go wrong with labs.

Same for goldens, but with a lot more hair. With any popular breed, though, watch out for puppy mills. You can find yourself dealing with a very sick dog and some serious vet bills very quickly. With rescues, make sure you find out why they were put up for adoption... if a rescue organization tries to dodge the question, they're not reputable, but some otherwise good ones won't bring it up first.
In an apartment, I wouldn't recommend beagles... some of them are serious howlers, and the habit can be really hard to train out. Wouldn't recommend the really huge breeds because they usually don't live as long. Don't get young greyhounds, whippets, Salukis, or anything else that loves to run if you can't at least take them to an off-leash dog park often.
Good luck!