there's actually a price guide in the mene exchange
and go into quest sub forum and they have a guide there to help with making quest thread
I wouldn't always go by MAC's price listing since Its not always up to date
the Bee/panda slippers range from 17.5-20k
the bee/panda head phones between 1.5-2k
ohh there's also an avatar creator, called the MAC (menewsha avatar creator) it can be forund in the avatar chat subforum and it's a sticky...
there are raffles and auctions of rare items that can not be sold if won (Such as V-day 07 & st.paddy 07 items) but to participate in the raffle yo have to meet the requirements