Well, since this has only in the past few years made an appreciable difference, the SI unit people have clarified the whole GB=1,000,000,000 bytes thing:
http://en.wikipedia.org/wiki/Gibibyte
And so officially, a Gigabyte is 1,000,000,000 (10^9) bytes, just like a Gigahertz is 1,000,000,000 hertz. A Gibibyte is the binary version (2^30), or 1,073,741,824 bytes. So that hard drive is actually 320 Gigabytes, or 298 Gibibytes.
As an aside, I don't like this system, I have the binary system too well ingrained in my mind from >20 years working with it... But it's something I need to be aware of, as with increasing sizes of storage it's only gonna become a bigger issue.
Back on topic: I also tried a WD Scorpio 60GB in 2 A1200s - no issues with the standard PSU, CD-ROM and Blizzard 1230...
Whoops, I didn't see this one yet. Whoah, what they did is one of the stupidest things I've ever heard of! Why don't they just go and change a definition from what it's always been, to say nothing of different from what computers actually use. They had no business trying to change Gigabytes into something they're not. Their Gibirishbytes is what they should've made into the absurd marketing definition, and left Gigabytes alone. I've never even heard of all those Gibi, Mebi, etc. nonsense words before. What's next, we start calling apples oranges, and vice versa?
:angry:
Of course you don't like it, how could anyone in their right mind like that. That's entirely worse than when they changed the meaning of the word planet. I say we all should band together in a united front against official stupidity!!! I say it's 298 Gigabytes, and 320 Gibirishbytes! And so does my computer, so there.
:furious:
As for the WD Scorpios, it's no wonder they don't cause any power issues even with the standard PSU. I think they're exceptionally power efficient, just like they're so quiet. They're designed for use in battery powered computers afterall.