You need to consider is not just getting accepted to a program, but succeeding if you get in. Otherwise it's just going to cost you a bunch of money, and you will be looking for a job two years down the road. Obviously trying to sell a 2.75 GPA is going to be tough.
It doesn't sound like you have done your homework on alternatives, by visiting these universities web sites, calling their departments, reading this forum, etc.
Programs like Stony Brook or Fordham are not likely to accept you right now. Their web site says: "Provide proof a of 3 undergraduate grade point average overall (on a scale in which A=4, B=3, C=2, D=1, F (failure) =0) and a B average (that is, at least 3.0) in the undergraduate major. This requirement is waived for foreign students."
Fordham's MA program says: "Applicants must hold a bachelor's degree, normally with a 3.0 [B] undergraduate index, preferably in economics or business." and their stats say the average GPA of incoming students is 3.82.
Even Hunter College says: "A student must have an undergraduate average of B in the economics courses and an average of B minus in the undergraduate record as a whole. The general aptitude GRE is required of all applicants."
The tough economy unfortunately also works against you here. There's more grad school applicants in New York.
Have you taken a practice GRE test? Do you know you can ace the quant portion?
There may be some other schools that would accept you, but I am guessing from your narrative that you do not have strong LORs, or a compelling SOP, research experience, or much advanced math. while you may have a "a passion" for econ, your econ grades don't really demonstrate that to an ad comm. You may want to go back get a second major (math?) as an UG if you really have your heart set on econ grad school. Where did you do your BA? Maybe you can go back to school there?