To get a DBA gig, you gonna need some experience. The reason I was asking whether or not you had a degree was to see if you may fit in some type of Business Analyst role. I think getting into a BA role may be an easier route to take to get in the game than trying to get a developer or DBA role off the bat. To be a developer, they're gonna know what projects you have worked on.
With getting a BA in Tech Management (I'm assuming you've gotten exposed to the business side of organizations as well as certain technical components) and taking those relational database courses, you may be suited for an analyst role and once you get that, you can work your way to the developer/DBA side of the house.
How good are you with querying and setting up databases? You familiar with 1st, 2nd, 3rd Normal forms? 1 to 1 relationships? Joins, unions, subqueries, primary and foreign keys, indexes, triggers, data modeling, etc?
If you cool with all of the ^ above, start putting your resume out and check out the responses you get. If a job offer you $40,000 per year starting out, don't turn it down on some "I think I'm worth more" type shyt, take it and do it for about a year to gain experience and move on. You may get contacted by some contracting firms as well, they are good when trying to gain experience too.
Oh, and how nice is you with Unix/Linux? A good working knowledge of Unix and Sequel can definitely get you in the game.