I definitely reccomend shelter dogs, too. Save abandonded animals!

I forgot how much work puppies were when I got my APBT a year and a half ago. (She
was from a
reputable breeder, but she was a birthday present from a friend, so I couldn't exactly say no. I love her!)
I do have supply suggestions that are oft forgotten if you do go with a baby puppy: Bitter apple spray. Keeps them from chewing up all your stuff, I forgot this and lost my 2 fave pairs of heels, 3 throw pillows and the arm to my couch. The spray didn't really bother her so I switched to invisible deodorant. Trust me, if the bitter apple doesn't work, that will. And also, invest in a large bottle of a cleaning product called Petzyme for accidents. That product alone is what finally got my dog housebroken since she couldn't smell any residual scent from accidents.
I don't want to dampen your spirits by any means, but don't forget to factor in the costs
after you get the pup: Vaccines (VERY important), dewormers, flea & tick products, food, spaying/neutering, & a kennel (if you plan to kennel train & just for travel...not cheap, but useful)...OH! And plenty of film for pictures, I don't have any pics of mine when she was a pup and it makes me so very sad.
Good luck with your puppy fund! I know your excitement. Another way to save up some cash pretty quick is to kindof give up something for a bit and put the cash in savings like you'd spent it. I did that with Coke one time since I drink so much, and I never realized how much money I spent on that stuff! Added up quickly. And the pooper scooper plan is golden, NOBODY wants to do that when they have a dog.