You might be interested in checking out the http://www.irvinehousingblog.com. In case you’re not familiar with it, this blog follows the housing bubble and features a property in Irvine every day.
About a year ago, the author started up a business (“Ideal Home Brokers”) to help people buy homes.
What makes them different from most realtors is that they will generate a “Buy vs. Rent” analysis report for any home you might be interested in purchasing. It is their belief that buying should be cheaper than renting.
Recently, the author went to Vegas and saw many properties that could be bought as rentals and be cash flow positive. He just posted about that yesterday (near the bottom).
His intention is to expand his business to help his clients buy Vegas investment properties at auction. It sounds like this might what you are looking for.
I’ve been following his blog for years now and I think his analysis is pretty good. I haven’t used them as realtors (since I haven’t bought anything yet) but I am impressed with the level of effort they put into educating buyers on what houses should really be worth.