I think needlewheel/meshwheel seem to be the standard preference these days. Beckett skimmers are extremely power-hungry/intensive and require more maintenance from what I understand.
Try:
ReefOctopus - popular, affordable
Vertex - popular, affordable
Warner Marine
My Reef Creations
Bubble...
I'd like to encourage all marine ornamental industry businesses to do something to give back to the natural environments that we exploit for a living.
http://www.onepercentfortheplanet.org/index.htm
