Ambient Occlusion in Panda?

I’ve been sort of AO-crazy the past few weeks, so I’ve been looking for various lightweight AO approximations (like SSAO) that will work on low-end GPUs, like mine. Anyone know of any AO methods besides the traditional SSAO algorithm (the one used in Crysis)?

Also, here are a few alternatives to SSAO I found while browsing the web:

Anyone think that it would be possible to get one or more of those methods implemented with Panda?