ezNZB

ezNZB is the worlds easiest NZB downloader program. ezNZB is designed for people new to this popular, high-speed method of downloading files. ezNZB will take you through the whole process step-by-step and is, by far, the fastest way to learn NZB.
For historical reasons, newsgroups dont have a simple search feature, but they do have something much better: an intelligence service. For a token fee, you can get an account with Newzbin, an "indexing service." Newzbin monitors all the files posted to newsgroups and provides various ways to search.
Once you select a file on NewzBin, the site makes an NZB file for you which contains pointers to the data on your ISPs news server. Then you plug the NZB file into a program like ezNZB which rapidly downloads the file. This is the state-of-the-art when it comes to downloading at top speed.