unless you plan on doing photo editing. I have an olympus and I am using a usb card reader. Beats the hell out of uploading with a cable like I use too. All you have to do is stick the card in and a window pops up, hit a button and they are there that very second.
Photoshop rocks for editing, but for image viewing I use acdsee. You can view images full screen in albums/folders and flip through them with the pg up/down keys.