wtb a skimmer, anyone have one for sale

i have a skilter 250 protein skimmer..is workin great in my aquarium..and is also a filter with pad..it has made wonders for my tank ..i recomend that..
i will check if a friend of mine has one for sale...at stores it cost like 49 US see if i can get a good deal of it..
that is nice i will have to talk to wife about that it will fit on tank, does skimmer work good, and how much would it cost to ship something like to st. louis area.