Hey t.e.r.,
So first off, is it a pretty fast computer?
Well it's not an dual Quad 3.0 GHz but it's fast enough and it's rock solid. I use it as a work horse and have two internal hard drives and 2 on FireWire with a total of around 10 partitions. I'm often working with 9 or so windows open at one time. It did get slow with around 300 items on the desktop so I jammed that into a folder and it's a lot faster.
And second, does the upgrade of ram beyond 1gb make a significant difference?
Well when I'm doing stuff like making a clone and working with a lot of windows open I need as much RAM as possible.
The only problem with these machines is they sometimes throw a power supply and even now replacements are expensive.
Richard