Can I use 2 network cards in 1 comuter to share DSL with another computer

[poolshark]

How can I use one computer with DSL attached to it to share DSL with second computer ?
I have 2 network cards I can use in first computer and one for the computer that I want to share DSL with

 

[r0tt3n1]

Look here for a good information and probable soultions to internet sharing.