uTorrent for Mac is a basic, free, and fast BitTorrent client that makes it easy for you to download torrent files. It's a bit thin on features, but it's lightweight and lets you download files hassle-free. uTorrent is the world's most popular BitTorrent client, and is now available for Mac.
uTorrent Mac introduces uTP, a new lightweight BitTorrent protocol that makes incredibly efficient use of network bandwidth while reducing network problems.