Internet download manager is very easy yet advanced and robust solution for downloading any kind of files. As it is freemium/premium product support is very awesome.the main problem very time I was facing is download cancel on a low internet.
Here internet download manager becomes the hero. it can schedule your task and download files for you. If I am not wrong it can download torrent files also. It can download each and every file at average 150 kb per second on my 512 kb per second network. so it will work fine for you also.