More questions on image resizing

[jasmee98]

I read a post that stated most use Photoshop to reduce there images to end up with a 80 or so kb file at 640x480.

Can it be done in a batch or one pic at a time?

I use Photoshop Album, which can batch export, resizing at same time. However, the 640x480 pic is 100-200kb depending on the compression( I have been using 10). I also noticed some of the pics seem a little blurry the smaller I resize, especially the darker ones.

I would like to get to the 80kb range.

Jay