I was able to go to Colin Chapman's Cross and the Cresecnt course that was run by Colin a few weeks ago in Sydney. It was a great time exploring both religions, and although there were a few things Colin said that I disagreed with (such as where Muslims fit into salvation) , the big thing that I was struct by is this:
The Qu'ran is not a muslim version of the Bible. It is actually the muslim equivalent of Jesus.
That explains a lot I think in regards to apologetics etc.