BA to MSN?

Tough question, because it really depends on the school. There are good and bad community college programs just like there are good and bad BSN programs. The good thing is that the BRNs basically make sure that at least 80% of graduates of a given program pass the NCLEX first try. So none of them are really THAT bad. However there are some really nasty programs that have horrible teaching but relentlessly weed out the bottom-feeders until they achieve the numbers they need to survive as a program. Those programs can be brutal on the poor student, who is always worried about survival and loses sight of academic excellence just to focus on surviving their clinicals, etc.

Community colleges in general are poorly staffed and funded, but they somehow make it happen for their students.
Universities have a bit more funding in most but not all cases. Great instructors are what can really make a program work. There is one instructor in our program who has 100% devoted her life to nursing and some great clinical instructors. Some of them have scary reputations but I decided not to fear them and just roll with the punches and try to learn from whatever they throw at me. It's worked for me.

Community college ADN programs usually have a reputation for producing nurses with more clinical experience and know-how on the floor. BSN programs are generally richer in theory. Sometimes BSN grads have a tougher time adjusting to a floor. It's hard to say, really. Alot of it depends on you and your learning style as well.

Your biology background will be great preparation down the line. If you are waiting to get into a program consider taking pathophysiology and pharmacology if you haven't. Also consider Abnormal Psych and any class about child development or maternity/women's health. EMT classes can help get you in the right frame of mind and teach you a little physical assessment stuff. Good luck.