I've been using the calculators from Tasty Brew and find them very helpful. I know several other HBT brewers use them as well.
I found another site that also has some handy brew calcs, Powers Brewery. I haven't seen them mentioned in the forums so I though I would pass the link on to anyone who might want to try them.
I hope I put this post in the right place.
Thanks for the link, I already knew about tasty brew but the other one seems quite helpful!
Double Mutt Brewing!
On deck: More Apfelwein
Primary 1: 011 Trippel
Primary 2: 010 Wit
Primary 3: empty
Kegged: 009 Zaca Fire Ash Hefeweizen
008 Summer Hefeweizen