filefield_image 6.x-1.0-alpha1

The essence of imagefield, condensed in less than 200 lines of code. Requires FileField 6.x-1.0-beta1 or later (or maybe not later but exactly, can't tell for sure yet).

Known issues:
- file preview doesn't work before saving the node when operating with private files
- thousands of nice imagefield features not implemented

Apart from that, I think this module rocks. You should definitely try it out on your development site (but yet keep it far away from anything involving production use).