Hi.
This thread started almost a year ago and I hope people solved their problems with Windows Vista (without changing back to Windows XP).
I've Windows Vista Ultimate on the computer I used for Trading. If you have a recent computer or buy a new one I would recomend you use Windows Vista as long the software from your broker is compatible with Windows Vista.
Regarding Office 2007 I'm using it since Beta 2 and I've had to admit that in the first coupple days I was a little bit lost. But it was only two days. After that it seems pretty intuitive and I can't miss the Conditional formatting on Excel 2007 to analyse my trades.
For the people new to Office 2007, Microsoft has Interactive: Excel 2003 to Excel 2007 command reference guide that will show where are the old commands in the new Ribbon UI (in an Flash interactive guide). Please take a look at them. There are Interactive help guides for all the new 2007 versions.
Interactive: Word 2003 to Word 2007 command reference guide
Interactive: PowerPoint 2003 to PowerPoint 2007 command reference guide
By the way, if you install Windows Vista, please install the Service Pack 1 Release Candidate (RC) as it speed your machine a lot.
If you need any help on Windows or Office, please just say so.
Thanks,