Instant Messenger app that alerts you when a contact signs on?

[Blacker.the.berry]

Hey all.... Anyone know of a good IM / Instant Messenger app that alerts you when a contact signs on or becomes available?

My inferior BB Storm used to do it. It was even able to set a custom "available" tone for each contact. I know my droid has to have an app that does that.

Thanks for your feedback...

 

[Blacker.the.berry]

Bump

 

[Pipester]

eBuddy is pretty popular. I don't use it, but it would be a good place to start.