how often are torrents like these infected and if they are, how easy will it be to clean up the mess?
As I said, it all depends how you choose. Kol kavua k'mechtza al mechtza. If you know the way things work, you have no chance of being infected, esp. if you have A/V. This torrent contains 3 files, one's an ISO, which doesnt autorun, the second is a txt file, and the 3rd is tha activator, which can be compared to its source (and see that they're the same exact hash sig).