how do you go about matching the springs to the bullets that you shoot? in a 1911 how do i know where to start and how do i know when i got what i need? what brand of springs do i need to use?

I'm no gunsmith and can't really give you any advice about matching the springs to the bullets you shoot, but when you decide what weight spring to buy go to: www.gunsprings.com.

Wolff gun springs will have whatever weight you desire.