I'm officially pumped for the UFL. To be exact, I'm pumped for your Sacramento Mountain Lions.    The Mountain Lions introduced their most recent signee, Daunte Culpepper, at a press conference at the Hilton Hotel Wednesday morning.    They also unveiled the team's new logo, a ferocious-looking saber-toothed fellow forming a sleek and dynamic "S". The logo is solid, and will look good on UFL-licensed merchandise. The Mountain Lions will have sweet hats.   Of course, it doesn't matter how cool the logo is. If the team and the league aren't a success, the merchandise won't sell.   On that front, both the team and the league took a major step in the right direction by bringing in th