@warpiper
Win98's DOS tools will rollover on a drive that big, but once you have it formatted the OS will see and use it.
I have a 120GB drive under Win98 and had to use Linux's fdisk then FreeDOS' format command to get it to play.
As for the Firewire drive, you can pretty much forget it. Win98 doesn't like removeable media much, and you'll probably never get Win2Kpro to boot from it anyway.
My suggestion is to trash the Win98 installation and install Win2K there instead. I'm about to do the same thing, but need to find somewhere to put around 80GB of video before I convert the bigger drive to NTFS.
Cache Ya,
Craig.