Different avatars for each account in Adium!
Adium lets you connect to many instant messaging accounts, but there is also a way to set different avatars for each account. You can change it in Adium Preferences, under Account. From there, you just have to select the account and click "Edit". The avatar is in the "Personal" tab. To set it only for that account, change it to "Use this icon" instead of "Use global icon". You can then change the avatar specifically for that account.