TBO no not yet - V64 is even worse than V32 for drivers and you will have to do a clean install anyway to avoid all manner of problems. The only Vista Upgrade I have got to work was on a empty machine running a new install of XP.
I would wait for Vista SP1 towards the end of October allegedly before even considering Vista for what you do. According to the true figures its a major flop anyway, people are buying cheap boxes pre-installed with Vista and overwriting the drive with XP, chucking Vista away.
I have been running Vista 32 for 18 months now and I could not use it as a main PC it is too unreliable, my printer still will not work, or my ATi Viideo Cards and thats just scratching the surface. I think they rushed it out, its not ready, it never will be and personally am going to wait for the next Windows (Vienna) due 2009 which will have all the stuff Vista does not and be an entirely new codebase as opposed to the ridiculous jumble of junk lobbed on to Win95 over the years to end up with Vista
I guess you could try it but do a full image with Acronis first so you can restore your original system
![Clan [KM] Image](http://www.clan-km.com/components/com_joomlaboard/uploaded/images/images-9e420c68e25c1cb49ecdf149338d5d76.jpg)