I think that Member of the Week is a good concept, but have you perhaps considered turning it into Member of the Month? It's just easier and more organised that way, especially if you want to make all the "Members of the Month" compete in a poll to be the "Member of the Year". But then again, that was just my idea. xD
But yeah, there's my input. Also, even though I voted for it, I've come to realise that Staff of the Month doesn't seem like too good of an idea, because it seems kinda like Employee of the Month, and I'm pretty sure people get too competitive over that... Wouldn't want tensions and all that. ^^'
Just some stuff to consider, though.
~Nexus