Wow, thanks Steven! This is certainly a feature I'll be using daily.
It's a pity that ctrl-clicking on an already selected album doesn't deselect the album again, though.
However, I remember having similar problems in other software and in windows explorer when trying to deselect 'grouped items', so it might just be a programming limitation/quirk under Windows.
As it stands, the implementation seems to be fine. Very happy! Cheers!