Chillers

After setting up a 90 gallon long reef tank with a sump that holds about 20
gallons, it is apparent that I will be needing a chiller. The tank is
upstairs in my den, has two 250 watt metal halides plus two 96 watt actinic
power compacts. I have two fans on the hood, one blowing air in at one end,
and one blowing out warm air on the other end. I have a digital thermometer
and it states that the temperature goes from about 80 in the mornings up to
about 84 in the evening. I would really like to keep it about 79 or 80 all
the time.

I was looking into chillers but didn't like the prices I was seeing. Then I
ran across a Pacific Coast 1/10 hp model. The specs say it can bring down a
110 gallon tank 10 degrees. I also ran across a JBJ Artica 1/10 hp chiller.
This one has 275 more btu's than the Pacific Coast model and comes with a
two year warranty. I don't know the warranty on the other. The price
difference is about $50.

My question is, has anyone had any experience with either of these chillers?
Good or bad I would like to here it before I lay down my hard earned money
for one. Any help is greatly appreciated.