UPDATE:
Still not sure what is going on, but I checked my bandwidth and there was a LOT coming down (like almost maxing my connection) but I wasn't doing anything else at the time. Yet the progress wasn't moving for the Mega download. On a hunch I closed everything but chrome (someone said in another forum it worked better with Mega and I use firefox most of the time) and the one tab with the download and it worked! It still hung up a bit but hey it finished in a few minutes instead of all day.