A 800x600 true-color BITMAP?!?

Are you aware that dial-up users frequent this site?

I mean, it looks nice, but really.

If I spend an evening at it, I could add a setting to profiles to turn full sheets into links, or load them with a Javascript click.

Loading them based on file-size would be a lot trickier though - something that big should be postponed till a Drupal 6 port.

You still have to load it to see it, so I'm not sure what good it'd do to go through all of that. It doesn't slow general browsing down, since the thumbnail is displayed on the front page and in looking through graphics. It's really more of an issue of images that big not being uploaded as true-color bitmaps. JPEGs and PNGs are just as effective, and aren't a megabyte in size.

Could you set it up to automatically convert a BMP to a PNG?