I took my 70-620 exam about a year ago and since then I have just been focusing on college. However, Summer semester is almost over and I will have 6 weeks until the Fall semester so I just ordered the MCITP:EA Self Paced boxed set and I plan on knocking out 70-640 before school starts back up.
Fortunatly, I have an MSDN:AA account through my school so I have about 6 or 8 Server 08 licenses along with VMWare Workstation so I will have no problem setting up all the labs that are in the books.
I don't have the work experience, but I excelled in my Server 03 class a few semesters ago. I replicated our classroom labs at home in VMWare and knocked out the whole semester worth of labs in 2 weeks on my own. After that I had nothing to do in my labs so I demo'd a Server 08 Core install and configuration for the class. I also redid all of my labs on a full install of Server 08. I really enjoyed it so I think I am going to enjoy going down the MCITP:EA path.
Wish me luck