AOL/Yahoo Bot

I am in need of an all-in-one program that can create any number of AIM/Yahoo screen names I choose. As well, it should be able to send mass IMs out to flood AIM or Yahoo messenger. We need to continue to monitor and test our thresholds on our machines and need something like this to make it work. It HAS to be able to send mass amounts of instant messages to any screen name we choose, AIM or Yahoo. Please bid and let me know you understand and we can get started. If you already have software create that works, let me know.