Leech: download manager
Leech is a download manager from Many Tricks that seems to take a "less is more" approach to controlling downloads. With the newly released version 1.1 it integrates with Safari, Camino, and OmniWeb via a SIMBL plugin (or, as some insist, hack), allowing it to take over downloads from any of those browsers. In addition to pausing and resuming downloads, Leech also features a rule based system that allows you to control what happens to files once they're downloaded, filing them to different folders or opening them in different applications according to file type. It also features drag and drop of URLs onto its Dock icon, Keychain integration, and a full searchable history menu.
Leech is €9.95 (~$15) and a demo is available. Registered users of other download managers can get a 30% off coupon.
