TorrentCascade is an easy, free and open-source program that searches popular torrents indexers and presents the gathered information in user-friendly way.

Features:

• Search on TorrentReactor, Mininova, Torrenspy, Isohunt and ThePirateBay
• Built-in download of the listed torrents
• Regular expression filter, so you can display only the very only results you want (i often remarked that indexers tend to give results not expected)
• History of searches and filters
• Sorting by Name, Size, Seeds or Leechers
• Light and transparent AutoUpdate feature
• No setup, one exe
• Comprehensive log of what happens

Requires Microsoft .NET Framework 2.0 or above.