PS3 owners what is your OS and have you replaced the Hard Drive?

[rukusa]

Im considering expanding my Hard Drive.

But since Im not very tech knowledgable Im afraid that I would break my console aswell as my HDD. Not only that I would loose my saved trailers and such which I enjoy watching on the PS3 :(.

I could use more than 60 Gigs that I have now, the 60 gig space is shrinking fast.


Something like 100 or 250 gigs would be great.