My first dog, I was thinking I wanted a hunting dog. I had never trained a hunting dog, but my friends had had labs, so I started researching how to pick a breeding and how to pick a pup. Like other posters, my head was just about swimming with all the info I was finding - most of it seeming to conflict! Of course, I was running all of this stuff past my wife as I was finding it and, apparently, she was starting to get sick of it.
One day, she came home from work and said, "You don't need to worry any more about all that interweb research you've been doing. I got you a dog. One of my co-workers had a litter of Golden Retrievers in his basement and they were cute, so I picked you the fattest one and he's in the basement!"
So that was that. Now, I can't list a laundry list of Open or Am placements or Derby points, but I can tell you that that fat Golden puppy is HRCH UH and perhaps his greatest accomplishment is that he created a certifiably addicted HRC handler, club officer, judge, and gradually improving dog trainer in me! He might have been a complete washout to a field trial trainer (Or maybe not, who's to say what he would have been with more experienced training?), but he was the perfect first dog for me!
My second dog, I decided I was an experienced dog trainer and I was going to pick my own pup. I visited the litter twice and emailed with the breeder almost daily leading up to pick day. When I got there, I took the one she told me to take and I couldn't be any happier! I have a hunch I'm going to put a heck of a lot less stock in the picking process next time!