So I've finally hit the point where ice bags just aren't cutting it anymore, too much hassle, too inconsistent. I've got a 100 gallon tank and I'm seriously considering pairing it with the Penguin 1/2 HP high-efficiency chiller. On paper, it looks like it should handle the load without breaking a sweat (no pun intended), but before I go ahead, I'd love to hear from anyone who's actually running this setup or something similar. Can it keep temps in the low 40s (or even 30s) without working itself to death? And how loud is it, really? this thing's going right outside my bedroom window, so I'm hoping it's more hum than howl. Any insight, advice, or "don't make the same mistake I did" stories are more than welcome.thanks