Good idea!
I recently started the 30 day shred- I feel like i'm going to die!! THAT is a good workout, and it doesn't even take that long.
I live in a condo with a gym too, but our treadmill has been out of service for the past 3 weeks (right when I was working up to a 5 k- GRR!)
I've been doing exercise videos and really enjoying them- it's a good way to mix it up! I have a friend who also has a collection and we trade with each other when we get bored. I've been challenging myself to do 30 days for each video- I've done 30 days of pilates and weights, and now I'm onto day 3 of 30 days of Jillian....she's kicking my butt.
If you live in a condo, there is no better exercise than running stairs. I used to do it at my office in the summer, and it did great things for my legs. I currently live on the 18th floor, so I'm still trying to psych myself up to do it!!
Doing the thing I hate the most is how i got into running in the first place- it's amazing the things it does for your psyche when you conquer something you hate!