In most states you require 150 + credit hrs to take cpa exam but I do nost see any thing that mentions you need stated credit hrs of accounting courses to take cpa. Big 4 hires lotta accting students. But definately they go for the ones who have accounting backgound but there might be exceptions. They also go for MBA s with accounting major but yo gotta compete with other stuents like accounting students with accounting internship. The bset strategy atleast for deloitte is to call recruiter directly and leave a message. Get the office no from thier website and start calling offices. This strategy works magic. This show your confidence and interpersonal skills. ALso upload your resume in monster or hotjobs. Write down your are gonna take a cpa exam. You might get call from cpa firms from there too. As you have limited accting backgound as you mentioned earlier, I suggest you take cpa prep class and show that as your desire to be in Public Accounting. But Ya gotta know that this is very demanding field. All the best peace out