Image Ready has quickly become one of my favorite apps. As Bone mentioned earlier, Photoshop never seemed to handle JPGs as good as it could have (lousy compression), but then came ImageReady. Since the two are tied together it's almost like an extension of Photoshop or like being in a filter dialog. It's compression options more than make up for what Photoshop lacks. It's a lot like Firewire (Macromedia).