I download a ton of big files, as I am a vMWare dork and have to have the absolute latest version of every DVD release under the sun. I used (and liked) FlashGet on the PC, and from what I can tell by Google it looks like iGetter:
Presenta Ltd. - iGetter Download Manager
Is the go-to. Any of you use something different/better?
I use wget but curl is fine too but that seems pretty cool.