I am currently using 2- Lacie 400GB FW800 externals and a 200GB Lacie FW800. I use 400A as my primary and 400B as a direct backup. The 200 is used as an archiving drive to keep track of waht images need to be burned off.
I am having lots of copying type errors with the Lacie drives and have had to replace the power cords many times. I am outgrowing the system and if forced to invest in something that will take me farther, that is what I am lookign for. 1TB of space as a primary with anoth to direct backup? Ideally something modular would be nice??? I have a MacPro with 5GB RAM and it is a dual 3GhZ (quad)machine. I feel things should operate much quicker with this horsepower as I have very few apps on it. The 400B drive takes a minute or two to show its contents in the finder which is not right.