So for the few months that my wife & I have been brewing, we've been using the sink/icebath method of cooling our wort. This is mostly because of our erratic brewing schedule. Every cost, no matter how small, takes months to be "worth it" meaning we're not going to be buying a chiller anytime soon.
We do have a lot of laboratory glassware in our basement however, and among those more esoteric pieces, is a 300mm Graham condenser. Despite not being designed for it, I'm finding a hard time seeing any reason why I couldn't place the condenser over the primary, and siphon our hot wort through it, while running cold water (our groundwater is COLD) through the jacket.
I did some tests earlier today (boiling water), and got a ~70degree drop depending on my flow rates. This makes me think that I should be able to siphon through the condenser into an icebath, and have drastically reduced cooling times.
Okay, so now please tell me what I'm missing, because if I'm not missing anything, I'm gonna do this with our next brew on Tuesday.
EDIT: gramamr ;)