Bluefins my read would be as follows… To me the nice thing about the outlying areas such as Temecula and Murrieta is that they have been leading the curve downward. While many people who are looking for more premium areas like CV, 4S, LCV etc, and frustrated by lack of movement or slower movements, this is not the case for the area you are looking in.
It could is arguable that areas that have depreciated substantially will hit a support level sooner because eventually the properties will pencil out to investors. Please do not confuse my statement with saying Murrieta is going to stop depreciating. The truth is that I have no clue if it will or will not. I would SPECULATE that it will continue to move down HOWEVER I THINK it could bottom out sooner then say more premium areas of San Diego. Thus, while I believe a bottom is achieved sometime on 2010 or 2011 for some parts of town, you may find significant risk reduction in Murrieta by waiting another year or 18 months as opposed to say 3 years.
Now, will the drop in price mitigate the rise in interest rates? Hard to say. I think it will because rising interest rates will push pricing lower.
Probably not to helpful but hopefully you get something out of it. You did not mention any intangibles about the home such as how long it was on the market, recent comps in the neighborhood, etc…
My personal read is that if you pull out and chill for another year you will get a better deal then todays deal.