The best foods for monounsaturated fat are nuts, nut butters, olive oil, canola oil, and avocado. Basically, I believe, most fats and oils that do not come from animals are low in saturated fats.
I have tried for years and years to get to my goal weight. The things that I did differently this time include upping the protein and increasing the good fats. It worked. I usually have about 50% carbs and 20-30% each fat and protein. But it is different for everyone. Greek yogurt is also a good source of protein. If you eat soy and soy products, that's a good source as well. How about eggs? Legumes?
"If you drop an egg, you don't say, 'Oh, shoot' and drop the other 11, do you?"
-Source unknown, but obviously brilliant
Reached goal 4/16/2010...but kind of afraid to look these days