Hmmmm. Good point.
I've noticed some new posters, and I'd bet that there are new lurkers here as well. Welcome all!
The first thing I'd recommend is that you learn your enemy. Here are a couple places to start.
This link is a shorter read, but covers the high points:
http://focusonjerusalem.com/islamandchristianity.html
This one will take a while, but is extremely informative:
http://www.prophetofdoom.net/ltr.html