Anyone have any experience with Graphics Gale?
Graphics Gale is superb. It is a program made specifically for pixel art and sprite animation.
Some of the better features include:
-Preview Pane (crucial for sprite work, allows you to see what your art/animation will look like at the size it will be in-game)
-Load custom palettes
-Right-click color picker
-Fully customize Hot Keys
-Onion Skins
-Customize Layout
-Layers, Transparency
-Automatic Dithering type Flood Fills
-Set Color Depth of your art
-Many export options but .gif is not available in free version (not a big deal). Export as a series of images or a combined image (sprite sheet).
Make the most of this program by learning and customizing the available hot keys. The onion skins are helpful when animating. I recommend setting a hot key for both "Forward Frame" and "Back Frame" so you can switch through your frames instantly.
It does take some time to learn this program, but that's true for most things.
Here's a headless walk cycle I made with GG and a "Hearts" level. You can download and use the Hearts Tileset at Open Game Art if you like it. Public Domain license.
http://opengameart.org/content/hearts-platformer-tileset-32-pixels