I played with a friend's Sony SRX81 that boots in about 30 seconds with XP, wonderful.

From flicking the switch, my Sony SRX87 gets to the XP Pro login screen in 36 seconds. From there, it's a further 7 seconds until the desktop is usable.

It goes into hibernate in 12 seconds, and is back at the password prompt in 20 seconds from hibernate.

I can't compare it with Win2k on this laptop, since it's never had Win2k installed, but I like it.
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-- roger