A few other things:
1) I always thought it was odd that the stock HS had a round copper base and the CPU top was square. This is one other reason why I never use the stock HS unless I'm building for someone else that just wants to use it.
2) I bet the genius at Gigabyte did that because of some of the problems with large non-stock heatsinks blocking that first RAM slot on some motherboards.
3) "Don't overtighten screws" - I need to keep telling myself this constantly during installation of just about anything.
4) I never heard of this Q-connector idea, but it rocks! Maybe other MB manufacturers will adopt this for my next build. I still have yet to mess with my latest build to fix the HD light that never comes on.
5) This may be a little "old school", but I usually try and connect most case fans directly to PSU molex plugs instead of the MB so it doesn't steal CPU cycles; maybe this really doesn't matter these days, but it's just a habit I got into since I started building.
Great guide!!!