bgp design

["Robin DeFreitas" <rdsmf () atl mediaone net>]

Does anyone know of any good books that specifically deal with BGP design !?
I have a large OSPF network and plan to implement 4 internet access points
at different parts of the network. I want to control traffic from certain
areas to specific internet access points, but have redundancy to other
internet access points in case the primary route is down. I was looking at
implementing either route maps with attributes to prefer a certain path over
the other or break my AS into Confederations. Is this a solid design plan or
is there a better way of doing this ?