Your build is excellent.
Bios updates are rarely needed or recommended.
Do so only if there is a problem that needs to be fixed.
Most of your time will be spent in installing and updating windows.
MY build process:
Before anything, while waiting for your parts to be delivered, download
and read, cover to cover your case and motherboard manual.
Buy a #2 magnetic tip phillips screwdriver.
1. I assemble all the parts outside of the case.
That lets me test them for functuonality easily.
A wood table or cardboard is fine.
2. Plug in only the necessary parts at first. Ram, cpu, cooler, psu.
Do not force anything. Parts fit only one way.
Attach a monitor to the integrated motherboard adapter.
3. If your motherboard does not have a PWR button, momentarily touch the two pwr front panel pins
4. Repeatedly hit F2 or DEL, and that should get you into the bios display.
5. Boot from a cd or usb stick with memtest86+ on it. memtest will exercise your ram and cpu functionality.
6. Install windows.
7. Install the motherboard cd drivers. Particularly the lan drivers so you can access the internet.
Do not select the easy install option, or you will get a bunch of utilities and trialware that you don't want. Drivers only.
7. Connect to the internet and install an antivirus program. Microsoft security essentials is free, easy, and unobtrusive.
8. Install your graphics card and update it's driver.
9. Update windows to currency.
10. Only now do I take apart what I need to and install it in the case.