Aperture Web Gallery

Aperture can generate a web gallery even if you are going to use a better gallery more suited to your needs it is a great way to generate thumbnails and sized images for whatever you choose.

Within Aperture you can create a new Web Page, File -> New -> Web Page, drag in the images you want to use and then Export. From the Export you can just take the Thumbnails and the Pictures

Tip

Use Aperture to generate thumbnails and equal sized images ready for any gallery.

For more detailed information on using Aperture read "Aperture 3 Portable Genius by Ellen Anon".