For those of us that like to work with full screen real-estate in Adobe PS CS3, try this little trick.

Do a shift+tab to hide the palettes and when you want them back, just hover all the way to the right of the screen and that will toggle the palettes back open. Now, here's the best part, they will stay open while your working with the palletes but when you move the cursor out of the palettes area, they toggle closed again giving you maximum real-estate.

Try it, I'm sure you'll love it!