ahhh my kind of thread.
you may want to look at a 3 year program for your MFA if schools will not take the BFA + work experience as enough to qualify for a 2 year GD MFA. RISD, Yale and a few others offer a 3 year MFA for non-graphic design BFA people; tho if you have been working in GD for a while i suppose you could get into a 2 year MFA.
you can hunt thru my threads as i have posted about this many times on here, but the top programs for 2/3 year GD MFA in the USA right now are generally conisdered to be
RISD
Yale
Cranbrook
SAIC (School of Art Inst. of Chicago)
CalArts
U of North Carolina
Virginia Commonwealth
and to a lesser extent
CCA
MICA
MCAD
and i am sure i am forgetting a few others.
i did my BFA at RISD and my top 2 year MFA programs are Calarts, Virginia Commonwealth and NC State. i would not look at Cranbrook until Elliot Earls leaves, Yale is basically the same education as RISD, and SAIC is basically a program to get you a good portfolio to get a big art director job. (i am going to go back to be able to get a tenured teaching position in GD - right now i teach GD but as adjunct.)
I have also started hearing about some distance/remote programs that will essentially allow me to get an MFA at my own pace from a somewhat lesser known program; i already have RISD on my cv so i do not need another impressive sounding (and expensive) school on my pedigree. I know that Notre Dame has a MFA program that is a paid position; not only free everything but you get a good stipend to teach a few classes as well. there are other programs like that out there.
as i mentioned, i am looking at an MFA to advance my teaching career, i am not yet convinced that an MFA will do that much (especially considering the cost) to advance you in terms of employment. others may have evidence to the contrary.