Good components....
One tip you might want to consider. A computer obviously has a lot of components, each of which is a potential problem. What I always do is assemble the "essentials" (motherboard, CPU, heatsink and fan, RAM, vid card, monitor, PSU, keyboard and mouse) outside of the case. I then short the two pins on the motherboard that control the power switch with a screwdriver, and watch the screen. If lights come on, fans spin, and the computer tries to boot before it discovers it has no drives, operating system, etc., then I know the basic components are OK. When everything is inside the case, there's always the possibility that a screw or something can get "lost" underneath the motherboard, causing a short, which can be a really miserable experience with a brand new computer. I usually assemble everything in the cardboard motherboard box or on some other surface that doesn't conduct electricity. Don't use the bag that the motherboard came in; it can conduct electricity!
Also, in handling your components, be sure to ground yourself. You can get a grounding wristband at Radio Shack, or can just get in the habit of touching the connected power supply when you are installing things.
Good luck!