How to cluster SQL 2008 with NLB

Hi guys!
I am trying to set up a SQL Server 2008 Cluster that uses NLB.

I will have 2 Windows Server 2008 Enterprise boxes that will run SQL 2008 enterprise.

I want to cluster these two servers then use NLB to manage traffic.

1. What are my options here?
2. Should I use windows clustering, SQL 2008 clustering, or both?
3. How can I use NLB on a cluster? Should I use ISA to load balance or should I use Windows NLB?

Eventually I will be running a project server on the front end.

Any resources, tutorials, or instructions on this would be very helpful. This is my first SQL clustering project so I'm a bit green.

Thank you for your time and help!