Yes, SwatIT is cool.

Also (hot of the press)

http://www.pestpatrol.com/

They now do a free online scan called "pestscan"?

Green blobs lower left and upper right on the main page.

Good luck

My only warning about SwatIT (based on an old free copy I have) is that it is very thorough, but takes a long time to run, so make sure you shut down everything else first