Crisis and Cure
One of our regular attenders at SPC said she was going to a conference at which Rev. David Carmichael was preaching. I have heard of Mr Carmichael before - he is minister of Abbeygreen Church of Scotland in Lesmahagow - but have not heard him preach. So, I found and I listened to his sermon "Crisis and Cure" preached at the Scottish Reformed Conference in Hamilton in 2007. (Obtainable from this page, or mp3 directly from this link.)
I can warmly commend it to you. Carmichael observes that the danger to the church does not come from liberals so much as from evangelicals who lost confidence in the word of God and so turn elsewhere for success.
Also, it is rare to hear a preacher preach with such intensity.