Several interesting posts and links at Scot McKnight’s blog lately on the gospel and what we need to believe to be saved.

John Piper, DA Carson, and Tim Keller on Did Jesus Preach the Gospel
Simon Gathercole (he’s the man) “God’s Power to Save” – recommended by Keller in the link above. This lays out the gospel and explains how Jesus and Paul both taught this.
Scot McKnight’s Comments on Did Jesus Preach the Gospel
And finally Scot McKnight on Piper’s Views on What we Must Believe to be Saved

McKnight’s blog is great, because first off he’s a top scholar, and second because he responds to readers’ comments. For this blog the comments are definitely worth reading.