This is what helped me back in the day when I did that stuff. I didn't know my ass from a hole in the ground and Avi's guides got me up and running, fully multi-homed!

http://freedman.net/bgbgp.ppt

http://freedman.net/bgp102.ppt

http://freedman.net/multi.ppt

http://avi.freedman.net/fromnetaxs/multi.html

http://avi.freedman.net/fromnetaxs/bgp/bgp.html

http://freedman.net/choose.ppt