Thanks Ted, I'm sure whatever you decide on will be kick ass
Also, something a little related, have you thought about
thread rating in a similar manner? (Based on people's rep power) - perfect way to highlight really useful threads, and because it uses the rep system's rep power, you know it can't get 'spammed' (so multiple accounts are not anything to worry about). Would compliment this hack perfectly - and further promotes the value (like this hack+rep-tie-in) of being a 'good' member in our communities; so good behaviour/interaction is rewarded by more say and influence.