I was happy to learn that Windows 7 has some new shortcut keys that let you control certain aspects of window management right out of the box.  They’re pretty easy to remember too:

• [Win] + [Up] – Maximize the current window
• [Win] + [Down] – Restore a maximized window, otherwise minimize it
• [Win] + [Left] – Snap the window to the left side of the screen
• [Win] + [Right] – Snap the window to the right side of the screen
• [Win] + [Home] – Minimize all except the current window
• [Win] + [Space] – Temporarily make all windows transparent
• [Win] + [P] – Change the display setting
• [Win] + [T] – Move forward through items on the taskbar
• [Win] + [Shift] + [T] – Move backwards through items on the taskbar
• [Win] + [1 - 9] – Launch or switch to the respective taskbar item (if already open)

If you have multiple screen setup (i.e. dual monitors), these will be helpful:

• [Win] + [Shift] + [Left] – Move window to the monitor on the left
• [Win] + [Shift] + [Right] – Move window to the monitor on the right

And, similar to the OS X zoom effect, you can zoom in and out using [Win] + [+] and [Win] + [-]  respectively.

For reference, here are some of the other useful Windows key shortcuts that have been around in earlier version of Windows:

• [Win] + [D] – Show / Hide the desktop
• [Win] + [E] – Launch Windows Explorer
• [Win] + [F] – Open up a search window
• [Win] + [L] – Lock the computer
• [Win] + [M] – Minimize all windows
• [Win] + [R] – Show the Run dialog
• [Win] + [Pause] – Launch the System Properties window

If there are other useful Windows shortcuts that you find useful, post them in the comments.