Windows Movie Maker does its job well... For a free extra that comes with an OS. A powerful, yet incredibly basic editor... And far too basic for my tastes. Tricking it into doing complex things that it wasn't meant for is hard.
EDIT:
Oh right, Sony apparently do offer a cheaper editor than Vegas for unprofessional users like me who only want a bit more than what WMM can offer. I'll be trying it I guess. Maybe this is the wrong thread to talk about this though.