Well I've googled and yahooed but there's nothing as far as a driver to connect the printer to the mac..
But I came up with a quick fix that you guys can try instead...
Assuming you have all your photos in a nice library on iPhoto, do the deal of cleaning and dressing them up in the usual fashion..
Now, take a blank CF or SD or Memory Stick Pro and connect it to your mac... Simply select the photos you want to print in iPhoto '08 and drag them to the memory card.. The originals will remain in iPhoto so you don't have to freak out about loosing them.
Now eject and remove the memory card, insert it in the Sony printer and you can then print them out just fine..
Not exactly the most time efficient way of doing things.. but at least you can print them out and not have to kiss Sony's butt waiting for a special driver.