La Leche League has a book called Mothering Multiples, which is a good resource for breastfeeding twins.
The website naturallyparentingtwins.com is also a great resource. There's a yahoo group called AP multiples or something like that.
On facebook there's a page/group/whatever called Babywearing Twins (as a bonus, the twins have two mamas).
Totally not my business, but have you considered inducing lactation in yourself, like how adoptive mothers sometimes do? The...