Kelly Mom posted a great resource page for what a breastfeeding mom really needs. And a second page to discuss the extras that may benefit a breastfeeding mom.
What have I found useful:
A supportive husband
A lactation consultant
breastfeeding websites and mommy message boards
stools and foot rests
Large cups of water
some nursing clothes (to help my comfort leve in the beginning)
I was overdue for a breastfeeding post.