I'm just speaking from my own experience, but that sounds like major over-packing to me. It'd be a good idea to pack a few diapers and wipes, but most hospitals provide those so you might not even need yours. You could probably call and ask if they provide them and save yourself some room in the bag. Also keep in mind that your baby will have his/her umbilical cord still attached, so the outfits you pack should be kind of loose fitting in the front and not rub against it too much.
Speaking of outfits, you don't really need more than one. The hospital will provide clothes for the baby to wear while he/she is there. You really only need a going-home outfit (and even that's not really required, but most parents bring one). You won't need multiple outfits for your baby. Assuming you have an uncomplicated vaginal birth, you won't be in the hospital longer than a day anyway after the baby's born.
Baby toiletries are also provided by the hospital. With my first daughter they sent me home with loads of stuff. Lots of baby shampoo, lotion, a pack and a half of diapers, wipes, one of those booger-sucker bulb thingies, a thermometer... so much other stuff on top of that.
So just speaking from experience, here's what I suggest you bring for your baby's bag:
A going-home outfit
A newborn cap
A thick receiving blanket since you live in PA
Diapers and wipes (I'd call first to see if these are provided)
Camera
Extra batteries
Maybe another memory card just in case
And for you...
Comfortable jammies
A robe
Thick socks
Panties that you don't mind getting ruined
Loose clothing for going home (you're still going to look pregnant)
Toiletries and hairbrush
Phone card/cellphone and a list of numbers to call
The hospital should provide pads for you (but again, you can call and check). The hospital I gave birth at provided these really long pads and a pair of mesh net panties. It was great because I was amazed at how much I bled after giving birth, and I would have leaked over the sides of normal pads (I wouldn't have ever guessed that mattress-sized pads would ever be preferable) and ruined my underwear. In fact, I bled so much that I didn't even wear my own pajamas in the hospital out of fear that I'd accidently ruin them. I just wore the hospital gowns they provided and those awesome mesh panties.
Your hospital should provide tours, and it'd be a great idea to go on one and get an idea of where you'll be delivering and what's available to you. Ask lots of questions and find out exactly what they provide. Overpacking isn't normally a big deal, but a lot of hospitals send new parents home with all sorts of things, so your car is going to be completely packed and you might end up annoyed at yourself. I know I was!