[TriLUG] Sprint DSL router 645 to a bridge?

[Greg Brown]

I was wondering if anyone in Trilug has taken a Sprint DSL model 645 
router and converted it into a layer two bridge (in order to assign the 
routeable IP address to something useful)?  I've seen instructions on 
how to do this on-line but I am interested in anyone's actual 
experiences before I go and do this five hours away from home and 
potentially break everything under the sun.

Greg