In Skype (under Tools -> Options... -> Sounds) I can configure what sounds are played when someone is calling or when one of my contacts comes online.
In order to more easily notice when certain people come online, I would like to configure these notification sounds on a per-contact basis, i.e. assign my contact "Anna" one sound and my contact "Ben" another. This way I could tell by the sound being played whoe came online (even when away from my computer but within earshot). Alternatively, I would like to turn off these notification sounds for all contacts except a select few, so when a sound plays, I know of these people came online.
Is this possible in any version of Skype?