QUOTE (Eli @ Jun 17 2008, 03:18 PM)

The 40 MB is when it is not running, only the tea timer is.
That pretty much answers your own question in a nutshell.
I don't know what your surfing habits are, etc., so it's up to you if you need or don't need TeaTimer actively protecting your system and how many people share your system and what their surfing habits are. Although for me a 40 MB consumption would mean I'd turn it off, however you need to make your own decision.
I honestly don't think the IE BHO add-on that silently blocks bad pages is going to consume that much, and is more-or-less worth leaving installed because you never know when it will protect you when you're venturing in IE one day.