Need Chiller - Help Me Choose

[mkregs]

I am starting a Seahorse tank...

Basics...
Tank: CADLights 39gal Pro (has 12gal sump). I figure the total system volume to be around 40gal with the sump running half full and accounting for water displacement from LR and LS.
Lighting: Outer Orbit 150w MH w/4x24w T5HO

I started this tank about 2 weeks ago and don't have a heater in it as I wanted to see what the temps would be w/lights on and w/lights off. My home thermostat is set to 74 in the Summer and 68 in the Winter. Right now, the ambient room temp has been 74. At that ambient temp, my tank runs at 78 lights off and 81 lights on. So, I will need a 4 degree pull-down when the lights are off and a 7 degree pull-down when the lights are on.

I have been looking at the following chillers:
Current Prime - 1/15 hp - $270 shipped - New
AquaEuroUSA - 1/13 hp - $280 shipped - New
Current Prime - 1/10 hp - $362 shipped - New
AquaEuroUSA - 1/10 hp - $320 shipped - New

Please help me decide as I would like to order within the next week. Your experience with any of these would be appreciated!!
Thanks,
Mark

 

[dyer_maker]

What about putting one of those clip on Azoo fan units on there and investing in a Tunze ATO as an alternative?

I'm thinking about getting either the Pro or Sig myself and that's what I'm leaning toward. I do have the Tunze already however with a tall 3g-4g acrylic water tank. I know the sump has a fan but one on top would blow some of the MH heat away. Your evaporation would probably increase thus the ATO. Having not seen a PRO in person I'm not sure how much room there is in the cabinet for an ATO. You could get a shallow tank and put it on the top shelf I suppose.