Oh shit, I guess I forgot to post it, sorry man. http://terrydownsmusic.com/technote...ges/STRINGS.HTM

I'm also working on a flash program that'll do the calculations for you, it'll be done tonight or tomorrow.

Keep in mind this calculation isn't exact, due to different types of winding and different company's ways of treating strings to increase strength, and the fact that different companies use different alloys (mixtures of metals).