Well, myself, Winstonthe4th, HotshotGG and Link115 all had huge lag issues at the same time, so it's safe to assume that was NA-related. It turns out the graphics issue I am having is fixed by updating my graphics card drivers to the newest beta version, which makes me think it might be similar to when RAGE didn't work on ATI cards on release (game was written for drivers that weren't available for public use yet).

No word yet on why Winston had negative gold when buying items.