This was an interesting one. Last week I helped a client install MOSS 2007 and Project Server 2007 in a medium size farm. Interesting project. I was on the phone call for only 10 hours
and helped the client set up MOSS 2007 properly and then set up Project Server 2007.
What I find interesting and not sure why Microsoft is going that route is that in order to install Project Server 2007 in a MOSS 2007 server farm, you need to install MOSS 2007 bits and Project Server 2007 bits on all servers in the farm.
This is way different from the 2003 versions where in the two could be on separate boxes and still be able to communicate with each other easily. I am not sure if we would have to buy additional licenses from Microsoft in this scenario or not.
However, let's just say the project was very interesting and a real challenge to implement. More details to follow up soon.
nilaish