I would also agree with everyone here that it isnt a good idea to start off with an anemone in the tank. I ran my tank for 3 months and finally got high enough water quality before I tried an easy anemone. I got a pink tip anemone and my tomato clowns love it. As for some easy fish I would recommend some false perculas or bangaii cardinals. I had damsels and they were a u know what to get out of the tank. Had to take out all my rock and then catch them. A 55g tank would be a good started tank. I have an eheim 2028 canister filter on my 75g fowlr tank and it works great. I also agree that a protein skimmer is a must and be sure to do a lot of research. Another website to check out is reefcentral.com. I am also a member of that and have learned a lot of things from just ready the forums there. If you have any more questions just post them on here and I am sure someone will have an answer for you.
later
E