Your choice which way to proceed but, I too am a big supporter of just doing a clean install onto the new SSD.
Although it is quite possible to just move things over, a clean install may actually be much simpler in the long run.
Also the fact a clean installation is always a plus
As suggested, make sure you switch to AHCI mode.
But I would also like to add:
Unplug the other HD, leaving only the SSD connected when you do the clean install.
Hook the other back up back up once Windows is installed and up & running.