I have a 4gig PC Quad Duo processor with Vegas Pro 9c + Prodad Mercali, Adorage & Heiroglyph + New Blue plug-ins.

If I instal Windows 7 64bit how many of those will still work?

I know there is a 64bit version of Vegas but what about all those plug-ins?

Can I load an earlier 32bit Vegas project into the 64bit version?

What other problems may I encounter? (Eg, I still want to be able to use MS Office apps & Photoshop etc)

Sorry, I know that's a lot of questions, but I suspect I won't be alone in wanting to know what to do.

Thanks Robin