I think you mean 100 products. There is really only one product page in a dynamic site. It pulls product information from the database.
I think with 100 items it would be easiest and safest to just enter them through the admin. It will give you a chance to get familiar with the store as well.
I would do your testing on your local machine.
How to set up a local testing server for Dreamweaver
It will be much faster working with the database on a local machine. When you are ready to go live see:
Exporting and Importing a database using phpMyAdmin