Keyshawn (this "shaky #3") has never in his career caught fewer than 4.5 balls per game. The last time Carolina had two decent WRs (2003), the #2 guy caught 3.6 balls per game. I'm expecting no worse than 4 catches a game from Keyshawn, which means 64 catches. Throw in the yards and TDs and I think he's a solid enough WR2. Not a very sexy WR2, but I'm expecting very Eddie Kennison-like numbers from him this year (marginally fewer yards, marginally more TDs). Eric Moulds is another guy who hasn't caught fewer than ~4.2 balls per game since his sophomore season. Very solid, dependable production. Not very sexy, but very dependable. Also, I really like Bradford, as the #2 WR in a Mike Martz offense. I definitely think, if Davis stays healthy, that I can eke enough WR production out to win more than my fair share of games (aided by the fact that I'll be starting two top-8, possibly top-5 RBs).
I don't mean to pick on you, but I feel tempted to play the part of devil's advocate. You're right in noting that Keyshawn and Moulds have been productive throughout their careers, but these guys aren't 26 anymore. I like Keyshawn as a WR4 or WR5 in this format, but he hasn't had a 1,000 yard season since 2002 and I don't think there's any real reason to expect that to change. He'll probably give you decent numbers, but you'll be losing points at WR2 each week.
As for Moulds, you can't assume that his past averages will carry over. He used to be a #1 WR. Now he's probably the #2 WR behind Andre Johnson. The Texans should be improved, but will they be improved enough to make Moulds a 1,000 yard guy? I have my doubts. Again, he should be decent, but he's probably a below average WR3.
I also think you're overly-optimistic about Corey Bradford. He's been in the league for eight years and has a career high of 697 receiving yards. That was four years ago. Bradford has always been good for a big play here and there, but I definitely don't think it's safe to assume that he's going to hold off Charles Rogers, Mike Williams, and company. It could happen, but I'd wait until after training camp before declaring him the WR2 in Detroit.
That said, I think Travis Taylor was a great pick for you. He could actually end up as the #1 WR in Minnesota and was definitely worth a shot where you took him.