Layers captures every window, every palette, every menu, every menu and status bar icon, every icon on the Desktop, and even the Dock and the Desktop background for each of your connected displays will be saved as a separate, editable layer in the resulting Photoshop image file.

Take the snapshot at the press of a keyboard shortcut or further customize it using the Inspector.

Features:

WebShot:
• New in Layers 1.1 Capture quickly complete web pages right from Safari, Firefox, WebKit, Camino or Opera. The resulting image is exactly, pixel-wise, as you see it in the browser.

Fine tuning:
• In the inspector there are a few options to modify the resulting image. You can also toggle between outline and table view.

Layer groups:
• PSD layers are grouped by window nature: Desktop (with Finder icons), Dock, Main Menu and Applications, overlays, pop-ups, floating windows, and others.
• Enable/disable groups to maximize PSD compatibility (i.e. Photoshop Elements)

Status bar menu:
• You can access a handy menu using the icon in the status bar. From it you can capture the whole screen or just the frontmost window. You can also open the inspector or quit the application.

Inspector:
• Open the inspector window to customize your capture.

Multidisplay:
• When there is multiple displays attached you'll be able to choose each one of them separately or any combination of them.

Image formats:
• Save your capture as layered PSD image, composite PNG/TIFF or Bunch of Images.

Preferences:
• Open the preferences window (Shift-⌥-,) to customize Layers. Assign your favorite hotkey combinations, manage your licence, etc.
• Choose default image kind and format.

Requirements:
OS X 10.6 - 10.7
Intel

Also available is:
Version 1.5.1 for OS X 10.5