When it comes to aphids, you don't have "to spray the whole room down for weeks with soap or whatever."

Instead, catch infestations early, while only a few aphids are present, then promptly dispatch them with your favorite method -- squish, wash, or insecticidal soap.

Beyond that, it's likely to be helpful to isolate the affected plant(s) in one area where you can easily keep a close watch on them.

Aphids survive temps into the mid teens. Thirty degrees won't bother them at all.

thanks for the help. i've been growing indoors for 5-6 years or so, but have never had a problem with these bugs before.

Take them outside and dust with DE (Diatomaceous Earth) This is not a pesticide, it's ground up rock that will dehyrdate and kill aphids. Here's a post on my blog about it along with some links in the post that you'll find useful:

Here is a link that might be useful: Diatomaceous Earth -- Post on Judy's Square Foot Garden Blog