Still wondering if you should take the plung and upgrade to Vista?  Well you know eventually you will, but for the potential early adopters installing Vista only to find out that the one program you can't live without won't work on Vista really sucks.  Here is a list of the Vista compatible software titles.  That list can really help to clear the muddy mirky waters that can often slow adoption of new software.

***UPDATE***

Just in case you are still neverous about installing Vista there is a how to guide to dual-booting Vista and XP.  That way you can experiment with Vista while still having good old trusty XP to revert back too.