Thanks for the suggestions!
My internets are squeezed through an incredibly tiny pipe and are down more than they are up, so for anything more than a medium picture file size I usually use a download manager on the PC. I was hoping to find something that would manage the downloads so I could listen and get acclimated to ATC traffic on the iPhone. I don't use it for cell service over here, but I do have a wireless router connected to a poor excuse for a satellite data service.
I've searched high/low for an app that would do this, but short of jailbreaking the phone I haven't found anything in the app store that would be able to act as a download manager.
For anyone that isn't familiar with them, download managers handle things like random disconnects, pausing/restarting, slowing down and speeding up downloads from the internet. They are a godsend when you're sitting on the back side of nowhere and have a matching internet service provider.