Messenger program that supports MSN protocol and supports unity bar?

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http://askubuntu.com – I'm presently using pidgin, but it doesn't adequately notify me when I receive a message. I know I can get it to make noise, and pop up a notification, but I very specifically would like the icon to flash or wiggle (or something) on the sidebar until I check it. Is there a way I can get pidgin to do this/and or is there a different program that does? It needs to support MSN. (Edit: Can someone create the "messenger" tag please?) (HowTos)