Not sure what you're trying to get at Efc. Is your internal drive broken and you want to use external one to watch blu-ray/play games??

I dont think the PS3 is set up for HDMI pass through... also, unsure if there are USB drives for the Blu-ray drive... also, unsure if the standard or even jail-breaked O/S supports external Drives (have heard of USB keyboard/mouse working).