Keep your hikes short for your pup's first year, real short. The stress of a long hike is not good for the developing bones of a puppy. Some folks recomend giving pups a year-and-a-half before taking them running or on longer hikes.
I'm in the same boat you're in. I'm getting a pup real soon (today sshhhh!) and I love hiking. I won't be doing much this year, and right now is my favorite time to get out (daylight-saving-time while there's still snow on the ground).
If you keep your hikes real short ( a mile or two) for your pup's first year, you should be fine. And next year you'll have a healthy hiking partner who'll be able to go anywhere you go, and like it.