I have always found that Mac OS X lacks an elegant yet free downloading tool that supports segmented downloading until I met ">aria2, which is a linux-based command-line downloading tool. From their website:
aria2 is a download utility with resuming and segmented downloading. Supported protocols are HTTP/HTTPS/FTP/BitTorrent. It also supports Metalink version 3.0.It is very stable and fast (at least no slower than Speed Download and iGetter on my computer. However, the latest 0.9 version of aria2 does not compile on Mac OS X. After some work, I figured out how to make it compile -- read on for the how-to.
Here's how I got the latest version (0.9 as of this writing) to compile on OS X:
char *
basename (const char *filename)
{
char *p = strrchr (filename, '/');
return p ? p + 1 : (char *) filename;
}./configure
make
sudo make installMac OS X Hints
http://hints.macworld.com/article.php?story=20070114214453420