Not to steal an idea/thread from Xela, but hell, it was a good idea...I did some research into my training device; the Kurt Kinetic Road Machine and found that they have a simple formula for calculating power from the speed of the rear wheel. If you have a Kurt Kinetic trainer and want to know...

I can't make myself pull the trigger on a power meter. Everytime I start to price them, I think of lots of other things for the bike I would rather have. Maybe if I raced more, I might, but for what I do, it seems like too much of a cost. That being said, I thought it was cool to find this...