Ahhh...the alure of the anemone. It is easy to see why people want them...they are beautiful and seem to "capture" the underwater world better then anything. That said, you have been offered some very good advice. These animals are not for new tanks or for tanks that can't support their photosynthetic needs.
I suggest starting with some fish (SLOWLY) that are reef safe then move onto some easy corals (depending on lighting). Only after you have managed to keep your animals happy and healthy for several months should you attempt any anemones. Sorry to be the barer of bad news but many of us speak from experience.
Some people are like slinkies...they serve no real purpose yet can still bring a smile to your face when you push them down the stairs!:p
Have a great day! Brian