I drafted Marrero based on this thread, and have been thrilled so far (5 HRs in 9 gp). I was wondering how you found him in the first place--did you go through every single card, or just notice that his HR numbers would extrapolate well to an entire season.
For the rest of you--how did you find your most valuable cards?
Also, it looks to me like there aren't really many or even any pitching bargins the way there are with hitters.