For a ultra-budget solution I'd say ECS K7S5A. For a budget solution I'd say Shuttle AK31A. For a mid priced solution I'd say Epox 8KHA+. For a high-end solution I'd say Asus A7V266. There are other excellent boards in all but the K7S5A and AK31A's price range and most are solid performers, so it's all about what features your after and how much your willing to spend.