wxDownload Fast

wxDownload Fast (also known as wxDFast) is an open source download manager. It is multi-platform and builds on Windows(2k, XP), Linux and Mac OS X(binary still not available).

Besides that, it is a multi-threaded download manager. This means that it can split a file into several pieces and download the pieces simultaneously.
Features:
- Faster downloads (with Segmented/Multi-threaded/Accelerated transfers)
- Download resuming (Pause and restart where you stopped)
- Download scheduling
- Organizes files you have already downloaded
- View server messages (HTTP, FTP, file://). No HTTPS support.