Move Windows 2003 Server to new Hardware

My school run Windows 2003 server on a small desktop and I want to move it to a higher spec server. My plan is to install an additional drive into the desktop and then clone the whole disk using Acronis True Image v9. I would then put the cloned disk into the new server and boot from that. I want the new server to be an exact copy, as we will not use the old server again, so I don’t think it is necessary to use the Microsoft sysprep tool as there is no need to change the SID or anything else (I think).

I am anticipating the possibility of having to install additional drivers as the hardware is different but wanted to ask if more experienced users could foresee any other issues – like motherboard serial number etc

Thanks