PPC management Tools

I was curious if some one in this forum would like to share with the names of the PPC management Tools that they are or have been using in the past. And what are the benefits they provide. For instance i know of "Atlas OnePoint Pay Per Click Bid Management"
I have never used it, but would like to know if it’s good or there are other ones that really help and work with Yahoo, MSN, and Google
Do you recommend any software, please share your experience.
Thanks

Original post by skionxb