Hi - I am in a similar yet very different situation. I graduate in 1992 and will be applying to PHD program for Fall 2010 and investigated the things I should do to try to gain admittance. While I am different in that my undergrad GPA was rather high, here is what I did/am doing that might prove useful. (I do not think you should worry about combining your GPA with current/future coursework but think of them as different processes. I do agree that you will be treated differently by those on an admission committee and since your experience relates to your grad interest, focus on that.)
- I enrolled in a one year certificate program (undergrad level/professional) in a related field (only 5 courses). GPA: 4.0 I liked this option because it showed commitment to complete a program - even though it was only 5 courses.
- I will begin a graduate certificate program this fall. I do not plan to complete it prior to beginning my PHD, but it will allow access to graduate classes which can be difficult to enroll in as a POST BA student. It also demonstrates continued interest and commitment. I hope to complete only 2 courses, but that's enough.
- I enrolled/will enroll in 1 additional undergrad course and found a professor who allowed me to take one of her grad. courses as a visiting student this fall. She is the type of professor who I hope to "work with" (ad visor?) in a grad program and since my experience relates to her specialty area, she approved my enrollment.
- (May not apply for MA student but) Go to all the conferences, presentations you can. Join whichever professional associations in your field. I did, and it has been more helpful than I imagined. I am volunteering at one of the professional conferences and have already met professors who have been wonderful to say the least.
Warning - It has been extremely difficult to enroll in courses as a visiting student/open enrollment at Universities. It has taken an enormous amount of time and I often failed. But, I kept researching and through my effort, I succeeded. Hopefully you will have better luck then I did. (Many told me not to take undergrad courses, but I have found them useful to a point. Plus, you have to work on those recommendations.) By the time I apply, I will have been at this for a year and a half and enrolled in 2-3 classes per semester/over the summer.
Good luck.