So I've playing around with this, it works really well for formats already supported by the PS3, but I find with the transcoding my CPU usage is pretty much maxed out. I have a Macbook Pro Core duo 2.4ghz, late 2007 model. I'm running on wifi so I'm not sure if switching to ethernet would make a difference in terms of CPU usage. I'm generally aiming to stream 720p mkv files since my TV only does 720p, so I don't need 1080p. I picked the preset "Good quality wifi 720p". Any tips on optimal settings that won't kill the cpu?