Unzbin Key Features

Multi server support
Enable/Disable individual servers
Full SSL support
Multiple downloads
Prioritize your downloads
Smart downloading (pause Par files untill needed)
Pause/Resume/Remove individual parts
Pause/Resume all downloads
Sort individual parts
Automatic validation/repair
Automatic unpacking of archives to any folder you choose
Automatically connect on launch
Automatically shut down on completion
Bandwidth Limiting
Powerful download schedule
Automated import folder
RSS/ATOM support + regular expressions + automatic download
Full Yenc support
UUencode support
Base64 Support

Unzbin has more features then we can put in a simple list, grab a free copy of Unzbin and see it for yourself.