Considering 70-648 Upgrading from Windows Server 2003 MCSA to Windows Server 2008

I've been at the local college for two years now and am about to finish, but mainly I've been concentrating on Cisco although I've taken some Microsoft server classes too. I was in the field 5+ years ago and have MCSA/MCSA on 2000/2003.
I'm looking at taking Exam 70-648 TS: Upgrading from Windows Server 2003 MCSA to, Windows Server 2008, Technology Specializations.
Do anyone know if I can just study the books, guides, videos I can get my hands on that pertain specifically to:
Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory Configuration
Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure Configuration
Since these are the two that encompass the 70-648?
Or, should I spend more time on something 70-648 more specifically?
Been out of the Microsoft certification world for some time.
I'm looking at taking Exam 70-648 TS: Upgrading from Windows Server 2003 MCSA to, Windows Server 2008, Technology Specializations.
Do anyone know if I can just study the books, guides, videos I can get my hands on that pertain specifically to:
Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory Configuration
Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure Configuration
Since these are the two that encompass the 70-648?
Or, should I spend more time on something 70-648 more specifically?
Been out of the Microsoft certification world for some time.
Comments
I actually used this book alongside Microsoft's free "What's new in R2" PDF. I was able to succeed on my first attempt, but admittedly one of my scores was very close (I forget which) was very close. I also had been involved in multiple migrations and deployments of R2 as well as ongoing support. So, assuming a lack of significant hands-on experience in R2, I would strongly recommend against the approach I used above. Instead, get the two second edition MS Press books for AD and Network Infrastructure. The 70-648 is more or less the exact same material. You can skim past anything that is redundant or largely unchanged since 2003, but most of the material will be new anyway.
Complete: 55/120 credits SPAN 201, LIT 100, ETHS 200, AP Lang, MATH 120, WRIT 231, ICS 140, MATH 215, ECON 202, ECON 201, ICS 141, MATH 210, LING 111, ICS 240
In progress: CLEP US GOV,
Next up: MATH 211, ECON 352, ICS 340
I am happy I made that decision. The test has alot of new material but since I already had knowledge of DNS, DHCP AD, Group Policy, etc i did not have to restudy this material and flew through the 2 books only covering the new topics. I was literally skipping entire chapters. The tests were a breeze because I had alot of basic questions which I already knew from my MCSA 2003. With the upgrade exam you will be iundated with new material test questions which will make it more difficult. Your margin of error is lower due you being given 20-25 Qs from 70-640 and 70-642.
The only reason I would take the upgrade exam was if their was a lack of finances.
I posted my current situation over in the CISCO forum found here.
Complete: 55/120 credits SPAN 201, LIT 100, ETHS 200, AP Lang, MATH 120, WRIT 231, ICS 140, MATH 215, ECON 202, ECON 201, ICS 141, MATH 210, LING 111, ICS 240
In progress: CLEP US GOV,
Next up: MATH 211, ECON 352, ICS 340