To iggycrackle:
Given that you are a liberal arts major... Did you always want to be a Nuke? or Is this something you considered recently? Given Only your GPA and grades, your chances are Ok to Good. Depends on how you perform in the interviews. Transferring in ( I imagine you mean going SWO first and then becoming a SWO Nuke) is very difficult, as the SWO community will not want to let you go. Only reason I know is that, I have been in touch with a recruiter about career options for a SWO and this is what he advised. About your chances, one of my school mates is in the same situation, so I can generally speak about the matter, since I know a little bit about his situation. A Technical major with 3.3 GPA will make you competitive, Liberal arts might make it difficult, as you will be competing among Pure technical, Science and Engineering majors. NR may be inclined to take them because they already have 4-5 years of academic training compared to you. This doesn't mean you can not apply, but your chances might suffer (MIGHT, depends heavily on your interviews). I have talked to several officers who were History, English majors etc...
Hope this helps. Thanks.