Hi again, Dawn, You've had a few answers now, with Virginia's being the most comprehensive. She also touched on a couple of key points, namely, that you should be talking about your options with an experienced agent, who is local to the area you'd prefer to be in. Targeting a certain area should be foremost, especially if you plan to be there for at least 5 years.
Then, you should focus on an agent who is both familiar with that area, but who also has at LEAST 15-20 years of experience, which would probably include transactions such as the one you seek. Most of us agents have a certain locale tied to our photos - Coto de Caza, for me, for example.
I would be wary of an agent who "claims" to be an expert for ALL of Orange County, because there really is no such person - not even one like me, who has been working in this County for almost 35 years. Most of us have geographical areas of expertise, and that is the kind of agent you should seek, and talk to.
If you're looking in South County, around Coto/RSM/MV, I would be a good such choice.
Good luck in finding a house you'll enjoy.