SP1 for Exchange 2010 release for sure was great news and made Exchange 2010 more stronger. Most of the migration scenarios and people who wanted to wait to see at least SP1 release start shifting into upgrade path after Sp1 release. Those of you you did upgrade early will remember , one of the most confusing part was collecting all required updates to get Sp1 rolling. Here is the good new Exchange team made great post helping to easy Sp1 deployment. I think it is great post and supper useful. I am including link , in this link you will get to all download you need and some of the issues came up in deploying Sp1 also addressed here……
Exchange 2010 SP1 FAQ and Known Issues
SP1 requires the installation of 4-5 hotfixes, depending on the operating system – Windows Server 2008, or Windows Server 2008 R2. To install the Exchange 2010 SP1 administration tools on Windows 7 and Windows Vista, you requires 2 hotfixes.
Note: Due to the shared code base for these updates, Windows Server 2008 and Windows Vista share the same updates. Similarly, Windows Server 2008 R2 and Windows 7 share the same updates. Make sure you select the x64 versions of each update to be installed on your Exchange 2010 servers.
Here’s a matrix of the up,,,, Read more click on above link
Oz Casey, Dedeal
MCITP (EMA), MCITP (SA)
MCSE 2003, M+, S+, MCDST
Security+, Project +, Server +