Well I finally took the 70-270 and passed with a score of 810.
The test wasn't as hard as I thought it was going to be.  But they did have a lot of server related questions that I though should be on the "server" exams.
I used the following:
Technotes from this site.
Exam Cram 2 (Pre SP2)
MS Press Book
CBT Nuggets (Pre SP2)
I'm not sure what to study next.  I have Sec + and Server 2003 classes this coming semester.  I need both of them but I still don't know which one to work on next.  I may do Sec + first!  I don't know.  I'll decide in Sept.  I'm taking the rest of the month off!