Upgrading Domain Controllers From 2003 to 2008 - Suggestions

Hello All,
Now this may be a loaded thread, but I wanted to see if there were any suggestions on best practices for upgrading my current domain controllers to new 2008 machines.  Currently I have about 20 servers, some of which are 2003 and some of which are 2008.  I have 2 2003 DC's currently and have 2 brand new 20087 machines ready to be deployed as new domain controllers. One of my current DC's is DNS and DHCP as well, WINS is not in use.

So, what I am wondering - are there any issues that would arise from the switchout?  I've done a 2000 - 2003 upgrade in the past, and had ran into some odd issues at that time.  Any suggestions to make the transition as easy as possible would be greatly appreciated.  I have no issues with haveing all 4 servers running in parallel for some time

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Mike KlineCommented:
Take a look at this question I helped with, has steps and links to some really good guides


One suggestion I'd have is go to 2008 R2 at this point if you can.  Do you have any trusts with NT domains; that could be an issue but hopefully you don't have that :)



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JamesonJendreasAuthor Commented:
No trusts!

Thanks for the link, I'll scroll through it to make sure I got all my ducks in a line!
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