Of course, the Astros aren't sharing that list, but JJO writes that the Astros have eight players on a shortlist for the 1-1 pick in the June 2013 draft. Interestingly, a high school pitcher is not on that list.
Everyone's going to have their own list, but here is John Sickels' list for the 2013 draft. There are some familiar names on there - some Biggio kid at #50 - with other local (to Houston) players.