There is no problem at all with putting the HD in your laptop. This is the way I did it, as I did not have an adapter at the time I started this process. Just install it in your laptop that has a CDROM Drive and load it as you would any new HD. Do all of your upgrades while it is on your laptop, including installing other software. One thing you will want to do is copy the entire WIN98SE into a folder on the HD, Do this also with the PenDriver Software for install after returning to the 1200. When you return the HD to the 1200 it will mostlikely need different drivers than your laptop uses, and when it calls for the Win98 CD just point to the folder. A neat way to load smaller amounts of data is to purchase a Compact Flash Card and PCMCIA adapter for it. Then you can copy the data to the CF from your Laptop and onto the 1200. Add any other software you want while the HD is in the Laptop, it is much easier to do it while the HD is in the Laptop. I addressed this in a post earlier on this board also... The idea of using the adapter is only if you donot have a laptop or donot want to open it up. I hope this helps. If I can assist you further let me know.