I've signed up too for better or worse.
+1 to keeping a 'study group' going on here.
I'm going to need to brush up on algebra and basic maths, and was recommended this by a mathematician friend:
http://www.khanacademy.org/math/algebra
and if, like me, you want to get the basics covered:
http://www.khanacademy.org/math/arithmetic
Malc