Compiling ALL the SRPMs

[Met @ Uber]

I had a stupid revelation the other day.  Its common fact that if I
compile all the programs for my systems architecture it will run
faster.  Many RPMs are compiled for NOARCH, and at the very least not
i686.  But I love the ease of RPMs because they're easy to track whats
on the system.  So my question is this.

Fedora puts up the SRPMs for all their discs, so is there a way for me
to easily compile them in some sort of dependency chain so that it will
succeed?

~ Matthew