Instructables: Self-watering garden using recycled water
 

Looks pretty neat, even if you're not recycling that much water.

Self Watering Garden - Using recycled water from an air conditioner

That's kind of cool. I may try that. I don't think I'll pump it to the outside, but I'll try and catch the water in a bucket.

Reading the comments makes me wonder about catching rainwater. Thinking about the bird poop that's going into the water from the roof...that...kind of grosses me out.

I don't think your plants will care.

I'm looking for a cheap condensate pump now!