It's really simple - go ahead and install it on the old computer and when the new one arrives, uninstall it and install on the new one.  The only thing it's going to ask for is the serial number.  Just be sure you save your installer out on CD or DVD and verify the file when it's written to disc to be certain it's not corrupted.

Hugz from Phoenix, USA

Victoria

Remember, sometimes the dragon wins. Correction: MOST times.