Jim Callis posted an interesting chart of the total signing bonuses that each major league organization has handed out since the 2007 draft (when the current Collective Bargaining Agreement went into effect).
I was a bit surprised to see that the Giants landed at #13 (and that they were less than $600K out of the 11th spot) on the list, because I've had the general impression that they've been relatively on the conservative side during the last 5 drafts with respect to other teams. Although, thinking back it makes a certain bit of sense due to the fact that the Giants had 6 picks in rounds 1 and 1-S in 2007, and they had the #5 and #6 overall picks in the 2008 and 2009 drafts, respectively.
The top 15, in order, are:
The White Sox were the lowest ranked team by a longshot - spending only 55% of what the Giants spent. Not surprisingly, given their tightwad reputation, the Marlins had the 2nd lowest total. The big surprise, to me, was that the Atlanta Braves came in with the 3rd lowest total and only spent less than $4M more than the White Sox did. That's counterintuitive because the Braves have had one of the most productive and highest ranked farm systems over the last 5 years (don't forget all of the players they traded to the Rangers in the Mark Texeira deal). I guess that just goes to show that you don't have to spend tons of cash to have a great farm system as long as you can identify and develop guys that don't have the most obvious talent. Of course, the Braves have also benefited from a steady stream of players coming out of their international free agent operations.
One other interesting note that BA also posted recently - Buster Posey's $6.2M signing bonus in 2008 remains the highest bonus ever given out in draft history to a college position player and the 8th highest bonus overall. That surprised me somewhat.