Well I am the president of...
Oh wait. Seriously man look at the posts that have been given to you by people that I would consider experts in the field.
There is plenty to glean from them, lots of information.
As Gitsnick mentioned "SP3 is still vulnerable to ms08_067_netapi,"
As he stated it don't get much easier than that.
If that does not work then you have to keep looking for things to try.
Take a look at the software that is installed on the machines not just the OS and see if there are exploits available for said software.