Should I take the GMAT

Hey everyone, I'm a freshman that goes to a very non-target, i.e. a large state school with a very high acceptance rate. I realize that breaking into IB is an uphill battle for me, coming from a school that garners little espect in business, so I'm trying to think of ways (aside from networking and getting a good GPA) that would help me land an IB spot in the future. I've read on many forums that it may be helpful to include scores on standardized tests (e.g GMAT, SAT, ACT, etc) on your application, especially when coming from a non-target background. So my question is this: if I intend to attend B-school at some point (likely 4/5 years after graduating college) would it be beneficial for me to take the GMAT, say, my sophomore/junior if I could achieve a high mark, so I could put it on my resume? Also, as a sidenote, the only standardized test I've taken is the SAT, and I only scored a 1420 on that, so, if anything, It may be a hinderance to getting a job.