I always have problems with uploading resources that are more that 200 mb (its not problem about my server. Because we have other sites on this server and all of them are limited but can upload 1 GB files, but my forum's access to server is unlimited somewhere but always has problem uploading heavy files).
Up until today, I couldn't upload a resource with 300 mb. It starts uploading but faces with error during process.
Being able to upload resources via URL can help us a lot (so that we can upload it easily from ftp and then attach it via URL in resource manager. Or even threads maybe)