I have a very good friend who just made the opposite move & is in Portland & loving it! Hope you're liking Berkeley. We visited our Portland friend & found it very similar to Berkeley. We live in El cerrito. So, back to your post....
My suggestion, in general, is to travel w/as little as possible, especially since you're alone. Have her sit on your lap on the flight & put her infant seat down the shute in the travel bag. We have one from Eddies Bauer. It's not a backpack style but works great. You just have to be sure the one you get fits infant seats. If you're going to rent a car, ask if they rent infant seats & if so, do that. The least you fly w/the better. Just be VERY clear w/them what style seat you need & be sure that the rental place in Oregon carries them. I say this cuz when our younger son was 2 months, we flew to Vancouver & I was repeatedly told on the phone that the rental company didn't rent infant seats but when we got there, lo & behold, that rental shop had infant seats! My husband was a bit pissed to lug that thing w/ us when we didn't need to! So, if you arrange the rental on-line, still call the 800 number to be sure they have the seat you need at your desination.
Some babies get pain in their ears due to the changes in elevation so make sure she's sucking on something at take off & landing....your boob, bottle or pacifier. If you're flying w/the intent of making bottles, you can now get the formula in individual packs so travel w/those & then ask the flight attendent to heat up the water for you. When my boys would have formula, I'd boil the water before I left & then put it in the bottle w/o the formula. That way, it was steralized & ready to go when needed.
Take your stroller & check it at the gate & also bring along your Bjorn or whatever front carrier you have. This way, if she doesn't want to be in the stroller thru the airports, you can put her in the front pack & then use the stroller to hold things.
Are you planning on staying in a hotel or w/friends or family? Either way, I'd avoid traveling w/the bed as they're heavy & cumbersome. Most hotels have cribs now so reserve one & just bring along your own sheets for it & if staying w/friends or family maybe they can borrow one from someone. If all else fails, the baby can always sleep w/you in your bed. If you're going to visit family & plan on doing this several times throughout the year, I suggest buying a pac-n-go to leave at their house. They're pretty cheap these days....you can get one for about $40-$50. Sometimes less at re-sale store or on Craig's List or EBay.
As far as packing, if staying w/family or friends, remember you can do laundry while you're there meaning you can pack less for both of you. Bring along enough diapers & wipes for a day or so & then buy a small pack once you get there for the duration of the trip. And again, if staying w/family or really good friends you plan to visit frequently, you can leave what wasn't used & it will be there for next time.
Well, that's all I can think of. Hope this helps & happy flying!