data import - product images

[Jesse Thomas]

Is there is a way of using a data reader to load a product image and 
have it treated as though its uploaded as an "Original Image" 
(generating the other sizes needed)? Or whats the best way to load 
images during data migration?

The images are available in the file system and via http, several 
thousand of them. Thanks in advance for any help or advice!

Thanks,

    Jesse