[MENTION=139952]ericantonio[/MENTION]
I spent 2 weeks camping in the area last fall, I recommend the following:
Just got back and was able to hit many locations you posted. I'd add the following sites my group enjoyed:
Owens River Valley - East of Bishop between Warm Springs Road and Poleta Road. There are a network of maintained and not-so maintained dirt roads with wild life, fishing, and scenic views of mountains on both sides of the valley. Careful some steep hills with deep soft sand, stay on the main roads if you lack the equipment to get out of sand.
North Lake - Small alpine lake with beautiful views of the mountains.
Casa Diablo Mountain - Lots of interesting FS roads between here and Benton Crossing Road (varying technicality, Watch for OHV's and Dirt bikes)
Hot Creek Geological Site - Hot Potting discouraged and no access after dark
Owens River - Just off of the Elbow in Benton crossing Road near the Campground is the entry to the Fishing area which is another network of not-so maintained dirt roads with wild life, fishing, and scenic views of mountains on both sides of the valley. Again be careful as there were some steep hills with deep soft sand, deep ruts, again pick the road that is right for your setup and skillset.
Some Suggestions for great food / service while in the area:
Keough Hot Springs - Great for a shower and soak, Ice cream cones were the best we had on our trip.
Jack's Restaurant - Home cooked meals, sandwiches, and Lemon Meringue pie that was fantastic.
Cardinal Village Resort - Best breakfasts near Bishop. Say Hi to Hannah and team at the cafe.
Paiute Palace Gas Station - Lowest price on gas between Big Pine and Lee Vining
Epic Cafe - Little cafe that is hard to get into. Best food and service I've received in a LONG time. The Pear and Cranberry Pie was fantastic! As was the Salted Carmel Brownie and everything else I ordered.
Latte Da Coffee Café (coffee house at el Mono Motel) - Try the Rojo Raven for Breakfast.
Boort