Yes, a download manager is the only way to go. True there are a few sites that
give them problems, but I’d say they work on about 98% of all sites. The one I
like best is flashget, not only will it let you resume but also splits your download
in to several streams that can considerably speed up the download. But there are
many others to pick from.
Flashget
http://www.amazesoft.com/