250Kb is kind of the limit for the poor ol modem folks. No one on a modem wants to have to wait 1+ minutes for each image to appear. Kind of takes the pleasure out of looking at photos.
Disk space is not an issue. But a decent web experence by all involved is the main goal.
Simply resizing an image from its raw 160
1200 to 1024X768 or 80
600 will do wonders for filesize. Crop out the portion of the photo that has the subject mater you want and resize and most of the time your images will be very close to 100-150kb