"Sleepycat writes…
There is NO size limit on the HDD that the PS3 can use"
Are you sure about that? What drive sizes above 500Gb have you seen working since firmware 2.20?
I'm asking because prior to March/April 2008, I had a 750Gb SATA drive in an external enclosure hooked via eSATA to the PS3's internal SATA port (there are adaptors available for this). It worked without a problem until PS3 firmware 2.20 came out then the PS3 wouldn't boot from it or even format it.
At the time, I talked to people who were in a similar situation with 1Tb drives.
I found at the time that 500Gb seemed to be the maximum.
Sony tech support (at least the people I talked to) were unable to comment on the situation at the time or even clarify what the largest supported drive size was.
Having said all of this, 2.20 was a long time ago and things may have changed. I'd welcome any comments from anyone who has actually seen a drive > 500Gb working as the PS3 main HDD.