What I would suggest to to continue to pump, but to use a Supplemental Nursing System to give him any supplemental breastmilk you may need to give him. This will allow him to get the "extra" he mght need, and still cause him to latch on YOU rather than a bottle nipple, which uses completely different muscles. In essence, in order to breathe, a baby MUST swallow when a bottle nipple is in it's mouth. The function of a nipple is such that it automatically puts milk in the baby's mouth, therefore causing the baby to swallow in order to breathe. With the breast, however, the baby must suckel, using completely different muscles, in order to "milk" the breast. This is why some babies who are started on a bottle have a MUCH more difficult time nursing at the breast later...they are simply taught to "get" their sustenance in a manner that won't get results on a breast, and then they can get frustrated when you put them to the breast to nurse.
Statistically, it's actually a LOT less stressful for most babies to suckel at the breast than it is to do the "hurry up and swallow" that they have to do with a bottle. If you would prefer, however, NOT to use the SNS, you could also consider using a syringe or using the tubing from the SNS and finger feed, which is much closer muscle-wise for the baby to become accustomed to "nursing" than bottle feeding is.
Just some thoughts...I know that you've been really focused on the birth and now on getting the baby home from the hospital. Now, if you want to focus on breastfeeding, it would be a GREAT idea to call a Leader tonight and see if they can give you some help. I'm a leader, and could probably find out for you where the nearest Leader in your area is.
You're doing GREAT mama. I hope I"m not overwhelming you with this info, but you've been working so hard, I'd hate for misinformation to sabotage your breastfeeding relationship.
Check out drjacknewman.com he has a LOT of great information, is more than willing to anwser emails with questions, and is all around a great guy, from the experiences I've had with him.
TAKE CARE, and I look forward to reading more updates!