Take power supply out of box, lay cables out straight, and place something heavy on the cables. The "bends" in the cables are a PITA, this may help with cabling frustration at the end of the build. GL.
ETA: Keep the parts boxes for as long as the warranties last. I keep all of mine, in the case box.
Someone posted on here a while back about using a "laptop code" for win 7. On the bottom of laptop there should be an OEM number. Type in that OEM number for win 7 registration. I have not done this myself, so I don't know if it works first hand. But it should be fine.
This post was edited on 3/1 at 5:50 pm