So, you are still looking for that one download manager which can take care of everything and yet be free of charge! A while back this idea would have been far-fetched but not now! GetRight and others brought us incredible experience and change the way we downloaded by providing resuming capabilities, a feature which is de facto in all managers these days. But their main drawback was their price!
But fear not since Free Download Manager (FDM) has paved its way into the DM Arena. It provides all features a user can ever need and the best part is that its free and compatible with Firefox. Though it does have a browser monitoring feature, I would recommend using it together with the Flashgot extension for Firefox, and you'll see how your life changes. The best thing about FDM is that it can also manage Rapidshare links directly. So, if you have a premium account, you can paste the link in FDM and give it your RS account user name and password and it will take care of the rest.
I've been using it for over a year now and never once did I have to turn back. I am more than pleased with it.
Why are you guys just listening to me, go try it for yourself...
Free Download Manager