Need Help – Going to Yosemite for the 1st time.

Hi, a group of 5 friends (2 live in SLC, UT. 3 Live in Laguna Beach, CA.) who are all fairly experienced backpackers are planning a trip to Yosemite. We can leave the night of Tues. Sept. 9th from SLC, UT and need to be back to Utah by Sunday evening. My question to the group is – 1) should we fly or drive or a combo of both. 2) What should we plan for a 3 day backpacking trip (Looking for a continuous 3 day hike with a camping stop along the way each night – We don't want to do day hikes and then return to a fixed campsite each night)

Any advice would be great!