Open ended timing belts

Hi all,

I'm thinking about trying a flat belt to drive my table. I'm not sure
just where to start.

I was looking on SDI's web site, but it seems the site does not support
my Mac's version of Netscape, old version.

Can anyone offer links to how to size a belt for power ?

Any types of belts to use ? Seems SDI has multiple belt composistions,
some much cheaper than others.

Dave