I got this one for $29 when Princess Auto was clearing out their pond stuff last year. Using it to run a Beckett type skimmer right now (about 4 months so far), and way more power than my Sedra 9000 that I was using before. Will buy it again if I see it near that price again. No more noise than my Sedra.
http://www.amazon.ca/Little-Giant-PE.../dp/B002I0B96Y