I have been working in a bank's BO for about 4 years plus. Honestly speaking, even within BO itself, the department that you are working in will determine your pay. Some departments pay higher and some pay way much lower e.g Remittance, Payment Processing dept etc.

My starting pay was $2600 4 years back. Long hours, high volume and always the dept to get the blame when things go wrong.

Of course, there are good sides to being in a BO too. You learn alot about the products and the processes. Most importantly, strive to build up your product knowledge while in BO. It will greatly help you in future.