[outtafocus]

I broke down and picked up the Rio 20HF.
It was a little bit more expensive than I would have liked but none the less it was in my price range.
This pump is rated at 1290GPH at 1ft, and 990GPH at 4ft. Considering that this model is only $10 more than its little brother the 17HF which is rated at 1090 at 1ft and 840 at 4ft.

It seems to be very well made, includes an anti-vibration base which features both suction cups and rubber stand offs, making for a very quiet pump.
The unit also includes several adapters for mating the pump to you particular style of plumbing, ex, 3/4" id and 1" id flex tubing, a 1" threaded adapter and a few other bits.
It also has a removable prefilter attachment, for now the prefilter is staying on. This pump is very compact and is scarcely bigger than the mag7 which I had started with. The flow is also significantly better than the mag7, I was expecting a more aggresive flow but I believe my plumbing errors are limiting the performance.
I will bring you an update in the days to come, when I actually add my live rock and oh yeah salt water.

I am very happy with my choice. Please do not fall for all of the Rio bashing which is prevalent on many of the other online reef communities.
Rio appears to have made a great effort in improving the quality of their product line.
I have a Rio 90 powerhead, a Seio 620 and now this Rio 20HF. All of these are of very high quality and I would not hesitate to buy Rio again.