thoughts on x-plane?

I'm starting flying lessons this week, and I'd like to have an accurate
simulator to practice with as well. I currently have FS 2004, CH pedals,
and a Saitek stick/throttle, and I'm looking to get a CH yoke.

I just found out about x-plane and understand it has a very good flight
model. I'll probably be practicing mostly in a C172, so I'd like the
best 172 simulator I can find.

Any thoughts?

For those of you who always thought about going for a license, I started
a blog (http://www.myflightjournal.com) to record my experiences for
friends/family. You are welcome to visit.