We are trying to put together a trip to Yosemite in early June. My husband and I are traveling with another couple. We are flying from Pittsbugh and we need some advice as to where we should fly into.We want to visit Yosemite, Lake Tahoe and Sequoia National Park. We will have a week to 10 days to visit. We have already visited San Francisco so we are looking for something different. What do you recommend as an itinerary? Any suggestions for accomodations in these areas? We greatly appreciate some advice as this is a whole new area to us.