As long as you have a backup, go for it. Read as much as you can prior to
updating about some of the gotchas.
<
http://www.macfixit.com/article.php?story=20090813160052571>
One thing mentioned in this MacFixIt article has to do with Rosetta. I found
answers to many of my questions in this TUAW article: Mac 201: Preparing
your Mac for Snow Leopard <
http://tinyurl.com/px2fts>
Office for Mac 2008 Installer will install both sets of code (Intel/PPC)
regardless of what machine type you are installing onto.
Office 2004 and Office X runs on Rosetta
I did a Google search and found these links helpful, but the easiest way I
found to know if my applications are universal is to use Apple System
Profiler. Select "Applications" in the list and it shows "kind". Sorting by
Kind column makes it really easy.
Apple's list of Universal Applications
<
http://tinyurl.com/m8ttg3>
Be careful when checking out lists. Some have not been updated recently.
Universal Binaries and Intel-Native Mac Applications
<
http://www.macintouch.com/imacintel/ubinaries.html>
Rosetta Compatibility: PowerPC Applications on Intel Macs
<
http://www.macintouch.com/imacintel/rosettacompat.html>
Hope this helps!