Sky that is so awesome. You should be very proud!!! You should be proud that you are willing to continue as much as you can as well.
Here are some tips for you from other sites. ( I don't know if they are all out pumping or if they discuss supplementing as well, but I thought it might help you out!
Breastfeeding for Working Mothers http://messageboards.ivillage.com/iv-ppworkpump LLLI | Page Not Found LLLI | Page Not Found
this is a board that is just for moms that supplement and pump (miht be nice to talk to tothers that have done what you are going to do!)
Justmommies Forums -> Breastfeeding and Supplementing