My son (06) took it too. Said the Math was more of a challenge, but was suprised at how "easy" the Essay was. As far as "minimum" scores, I don't think the NCAA has set a standard (2400 is "perfect"), yet, on the new SAT, as many schools are simply ignoring the Essay scores and still using Math and Verbal only.
http://www.syracuse.com/news/poststandard/index.ssf?/base/news-0/111545553313620.xml&coll=1