Big problem is software. If all you use is office and a web browser then vista is fine. But I use:
A 2003 based domain - vista has issues
Ultraedit - vista has issues
Dreamweaver 8 - vista has issues
Nero 6 - vista has issues
Photoshop 7 - vista has issues
I am NOT upgrading all those bits of software (the cost is over £1000) just so I can see more eye candy. Plus we cannot take the risk of a domain update with the vista patches in order to get vista to be nice on the domain. As for upgrading to 2008 servers the CAL cost is prohibitive.
XP and the software above does everything we need it to - there is not a single reason to upgrade.
Just my take....
What kind of issues are you having with Ultraedit and Dreamweaver 8? I run both on Vista every day without issues.
