my opinion (which is a noob one) get a used skimmer. Only thing that really wears out is the pump, everything else you are paying for doesn't really wear. Plus if the pump wears out you can replace it with a pump you like better.
i got a pentair 250 on my 180g which is similar to euroreef 250 (
http://www.freshmarine.com/euro-reef-rs-250.html)
I also got H & S 200 (
http://thereefpro.com/product.php?productid=16534) but it doesnt fit under my tank unless i move my power line which ive put off.. lol