I'm looking for a way to use my HP Designjet 430 plotter with Vista 64-bit.
 
The system sees the plotter but I can't find a driver to utilize the plotter.

There is no HP driver for the DesignJet model 430 (Vista 32-bit version is  planned for June 2008). You may try a driver from another HP model but the results will not be optimal.

Do you have a suggestion?

I would pick the DesignJet 500 Vista driver but have not tested it.

Thanks.

I stumbled on this link and it appears they will be providing a 64-bit driver for the DesignJet 430 in early June, 2008.  Just wanted to let you know.http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c00852513&jumpid=reg_R1002_USEN