Friends, I'm looking to upgrade my mac pro's ram. It's the standard 2.66ghz config with 1gb built in. I'm looking to add 1-2 more gb of ram, and then I don't have plans to upgrade beyond that any time soon (so there's no need to hold back on filling up ram slots). Might one of you suggest the best configuration and a reliable retailer? On a seperate note, I am planning on setting up two 250gb internal hard drives in a raid-0 config with an external 500gb hard drive as back up. The data stored in the raid-0 config is important to me (family photos, movies, etc. that we would not want to lose), however I would still be regularly backing it up on an external drive. Is my data safe enough for me to sleep peacefully at night? What would happen if while backing up the drives onto the external drive there was a power outage? Could it damage the data on the internal and backup drives? Should I have a third backup? Would three 250gb interal drives in a raid 0 be asking for trouble? (with an external 750gb backup?) Okay, as always, many thanks. Hope I've given enough information.