If I haven't mentioned Photojojo before now, then I am seriously amiss.  The site has stacks of photographer booty available, and all at really reasonable prices.   Here are some of my top picks from their current range:

Functional...
Photoshop shortcut keyboard skins for Macs.
These slinky silicone overlays for your keyboard are bound to speed up your time by letting you access common actions quickly and easily.

Wireless Memory Cards
Boosting your camera with not just 4GB of memory but with Wi-Fi connectivity too.  It can send your images directly to your favourite images sharing app, such as Flickr or Picasa,  and geotags them too!  Don't you just love it when clever people put two and two together to get one cool product?

White Balance Lens Cap
I spend a good 50% of my photography time taking images of jewelry, so white balance is the bane of my life.  This lens cap let you bypass fiddly gray cards and take a quick a reliable profile of lighting conditions to use to calibrate the white balance in your images. 

...and Fun

Seatbelt Camera Straps
Retro and rugged, these seat belt camera straps are super cool.  Made from genuine seatbelts, the straps are soft and flexible, with belts for length adjustment, and come in a range of funky colors.  Snappy!

Photo-opoly
This item made me remember the cheesy personal version of Monopoly that my parents created for our little town.  Corny but we loved it!  Now you can create a much more professional looking game that is just as much fun.  Add your own photographs and details to make a fun game that your friends and family will enjoy for hours.