Keylogging software at BlazingTools.com
This website has actually one of the most quality keyloggers for Mac and Windows, they are not that expensive and very useful. Their Mac keylogger is the best on the market for ***** paid, I like it alot.
Some users really afraid trojans and viruses, BUT you must know that all antiviruses are fighting against keyloggers, especially on Windows, so your antivirus may call any keylogger a TROJAN or virus, but that does not mean they damage your pc. That mean this type of software can be abused with unauthorised installation, and that's all. Also antivrus companies are interested to keep users scared, so they will pay for subscription.
Keylogging software is used by millions of people worldwide for absolutely legitimate purposes.