I have all of my photos in iPhoto. But I do all my editing in Photoshop. Is there something that works seamlessly with Photoshop? If so, can it upload to Facebook and sites like that?
Bridge is your best bet. LightRoom is more of a stand lone Digital Asset Management app that replaces a lot of the functionality of photoshop. You can use PS with LR but its more that PS integrates into LR's functionality, not the the other way around.