For a less-crazed, more mature and thorough analysis of the recent trade, check out Beyond the Boxscore's breakdown.
Of course, the trade still doesn't make a lot of sense, and it's still because Hendrickson isn't much of a pitcher, but it does point out what tough lineups he has faced and some interesting analysis of what will happen vis-a-vis the long ball.
I'd just like to add that I will be giving Mark Hendrickson the benefit of the doubt, and will certainly be rooting for him (and Ned Colletti) to succeed.