1) There should be a sticky for this question it comes up so often, but alas, there is not. I hereby move for a moderator to create a sticky that allows ongoing discussion of this or at least links to the good threads/sites for reviews of different prep company material
2) OP, considering your time limitations, I'd guess 90%+ of the ppl here would recommend that you get the ExamKrackers set (it is the most concise). If you have enough cash and time left over, get the AAMC exams. The AAMC exams are typically considered very valuable practice time, if not the most valuable, so if you already feel like you know most of the tested concepts half decently, it may be a better value for you to just skip reviewing and just focus only on practice problems instead. So this is where we start getting into how everyone needs a different preparatory approach, depending on their strengths and weaknesses.