Help me strategize

I graduated from a non-target state school with a 3.2 gpa about a year ago. In the early parts of college I wasn't as focused and I went to a big party school, thus why my gpa is lower than many. I currently work for a life insurance company in commercial mortgage origination. We're a productive shop (well over $1 billion of production last year) and very lean, so I have a lot of responsibility compared to what some analysts may at other companies. Eventually, I'd like to go to a good (read, top 20 or so) MBA program in a handful of years.

My question is this; considering my fairly low gpa from a non-target state school, what's my best course of action? I'm fairly confident I can get a 700+ GMAT. Assuming I got, say, a 730 GMAT, what would be my best course of action out of the following;

1. Get an MSF from a slightly more noticeable school (I'm based in Baltimore so options are limited) and get a stellar GPA
2. Focus on volunteering / my current career / extra curricular and networking
3. Do #2 and also try to get as much of a CFA done as possible. Obviously having a CFA (or 1 or 2 levels of it) would be better than none, but how much would having a charter help a good school overlook my gpa transgressions?

Thanks