Contact a local real estate professional that services the Downey area. You may want to interview a few and find a good fit your your situation. Before you buy, ask the agent to show you plenty of homes so you get the know that market before making an offer. Also be sure to get pre approved for a loan if your financing to buy.
All the best,
I've been living in this area for the past 8 years and would love to help you out. I'm very familiar with the different pockets and where to find the real deals at right now. Feel free to contact me anytime, I would love to help you out.
Also, feel free to visit my website and click on the link for property search. There you can sign up for a free account to search as much as you like.
Let us know what you are looking for and your situation...we will begin the search!