overyourhead

A picture is worth a thousand words...
I've taken quite a lot of pictures in the last week. Some of which I want to put on my site. I want to be bandwidth friendly to modem users but still allow those people with broadband or buckets of patience to see the images in their full glory.

My basic idea is to have an image library. A front page with links to the sets of photos. Click on any link to see that set of photos as thumbnails. Click on any thumbnail and see a larger version of that picture.

Questions
1. Is this too complicated? Or should I just go with Plan B - have two pages for each set of photos, one for thumbnails and one for full images?
2. Is it easy for a non-HTML literate person to attempt my original idea?
3. How best to store the images (in their two sizes). As jpg? gif? something else?
4. What's a reasonable size for a thumbnail 10k? a full image 100k? There may be up to 30-35 pictures on a page.

Any advice would be gratefully received.