Pujols will be 1B/OF eligible next year, but even so, I still would take him first overall. His age, upside, and the offense he's in means he could easily have an even better year next year. Even with positional scarcity, I don't buy that you really need a SS in the first round. Even if you don't get ARod, Tejada, Nomar and Jeter will still be there, and Renteria, Furcal and Berroa have all emerged as solid starters too.
Vlad would be a late 1st round pick, because he isn't necessarily stealing, and there's some questions about his back, but he is a free agent, and if he goes to a more favorable lineup, his production could explode. Even if he isn't stealing, a .330-45-130 year is very first round material and very reachable for Vlad if he stays healthy.