On Uggla, I expect him to add about 10 runs, 10 2Bs, and 10-15 RBI, to go along with a BA increase of 30-40 points.
I couldn't agree with you more on the Bourn vs Pence deal. I've always loved what Pence brings to a team, and while I like Bourn's ability to steal, I would much rather take the extra power from a corner outfield position that Pence would've given. And, without looking at the numbers I think Pence holds his own in terms of stolen bases.