Self-explanatory: I want to get started with programming games. Since I want to focus as much on gameplay programming as possible, I'd like libraries or - preferably - an engine that handle at least graphics rendering, physics and audio. I use Mac OS X and will be programming in Python of course. Another important criterion is that it should be at least as much geared towards 2D as 3D.

Here's what I've found so far:

SFML
Unity
UDK
ClanLib
CrystalSpace

Thoughts/suggestions?

OpenGL
Allegro
Ogre3D

Those might be a bit too hard for a beginner, but check them out.

IMO Allegro 4 is the easiest game library, though I'm currently moving on to Allegro 5. If you want an example of what Allegro 4 can do, check out my Tetris variant here: http://sites.google.com/site/rocketboytris/