My advice would be to sell your home and rent a home that is larger and closer to your employer to reduce your communte. What sort of rent could you afford? I believe that the upcoming (current) depreciation cycle is going to hurt certain regions more then others. I feel that the areas such as Temecula, Murietta and Winchester could get hit pretty hard, perhaps as hard or harder then Vista. I also advise that if you are going to buy out there, take a very hard look the raw numbers with regards to how much you would be spending a year on fuel and car repair. Finally and perhaps most important the quality of life. If you have outgrown your home I would guess you have kids so you will need to subtract time with your family and add time sitting on the road.
You do not have to own a home to life a good life with your family. I rent, and really do want to buy, and there are some definite downers about renting, but for your situation I think selling, pocketing the cash, and then renting for awhile closer to San Diego may do you well.
