Seems I'm learning more about computers than photography... At any rate, now that I have external drives, I decided to explore the purpose of this ExpressCard 34 slot on the side of my late 2008 macbook pro. What's the best use for this; sonnet 21-in-1; dual USB ports, something else? My computer has USB 2.0. My external drives only get connected when I transfer files or backup. Backing up takes an eternity. I process photos using smaller files (Smart Previews), somworkflow isn't a real issue. To transfer photos from camera, I leave card in the slot and connect camera to computer using the canon-provided USB cable. Should I get a reader for the 34 slot or does removing the card from camera often result in shorter lifespan of card. I now primarily use compact flash card, but have SD cards.

