First off, I'm going to recommend you call an academic advisor at a university in your area...you'll be able to share the specifics of your previous education AND your career goals with that person and find out exactly what you would need to do to get a degree in accounting. I could also put you in touch with an accounting professor at Texas A&M Corpus Christi if you want specific advice (I teach business but not accounting)...
Some things to consider...
Your "general education" classes from your BA should transfer into the university of your choice...enough to eliminate the first two years of "basic classes". Some universities will simply waive the first two years for anyone that has already has a bachelor degree no matter what the field or how long ago you earned it...others will evaluate transfer credits on a class-by-class basis...and the age of those classes may require you to repeat a few of them. (Note: if that happens, you can often test out of those classes in some way...CLEP tests for example).
Accounting is a special case because of the 150-credit rule in Texas...students need to have 150 credits of college course work to sit for the CPA exam...a regular degree only requires 120 hours. Thus, an accounting degree leading toward the CPA requires THREE years after the first two years of basic classes...many students earn the additional credits by doing a year's worth of graduate work...others decide to go with a different certification after the normal two years of accounting/business classes. It is possible that some of your BA credits will count toward this requirement...it just depends how much they can transfer! (BTW, different institutions have different rules...it may be worth your time to shop around a bit to see which one would give you the most credit for your previous college work).
CPA isn't the only certification available for accountants...others don't have the 150-hour rule...but most accountants have some kind of certification beyond the degree if they want to find employment!
Here's a link to a summary that may provide some information to help you get a feel for the accounting degree:
http://www.cob.tamucc.edu/prstudents/undergrad/major-acct...