I wouldn't worry too much about a lowish cumulative GPA. Personally, I had a 3.4 cum and 3.85 in art history and have been accepted to UT Austin, Colorado-Boulder, and UNM with UCLA as my only rejection. I'm still waiting on Tulane though, so knock on wood!
As for GRE scores determining funding, I'm not sure this is true either. I scored 600 verbal, 680 quant, 5.0 and received full funding and TA positions at CU and UNM. The strength of my application was not at all reflected in my cum GPA or GRE, but rather my SOP, research/writing experience (award-winning undergrad thesis, a volunteer position as assistant tribal historian to the Muwekma-Ohlone Tribe, and a job with Stanford University's Department of Archaeology), and LORs. These three factors are the ones which seem to matter most, as they are the best at determining how much you know and how much you can grow.
My final piece of advice would be to really know the programs and POIs you're applying to. If you have a strong SOP, LOR, and experience with research interests that resonate with the program/POI, you stand a MUCH greater chance of being accepted. Good luck!