Hi,
It sounds like you want to simply copy a 30GB drive to a 100GB drive - with all partitions & boot sectors intact? If so, that should be simple - if you have access to either: Power Quest Drive Image or Partition Magic or Ghost. Any one of them will allow you to "image" an entire hard drive and make the new drive bootable. I've used them for years [their part of my travelpack of software tools on floppy disks]. Drive Image or Partition Magic will cost a few dollars $39 - $69 usually; Ghost you can probably download for free. If you have to buy, I recommend Partition Magic Pro, they usually include Drive Image for free & will allow you to copy or image drives remotely. Good Luck