You've pretty much have it. If you have a W8 key, you should be able to download W8 from Microsoft. You'll have to burn it to a dvd just as you thought. I suggest Imgburn. It's a very light weight ISO burning software. Once you do that, it's the same as it was years ago. Just pop the dvd into the drive and Windows will prompt you. Install the OS and then when asked for a key, enter the key you have.
It's supposed to be a valid key for Windows 8 Pro. But I did purchase it on eBay.
I won't actually have the system built until the end of March but I just thought I'd get my ducks in a row and hopefully have fewer problems when I do the build.
So, just to review, I can download the ISO file with my current laptop and burn it with its DVD player and this will be a bootable DVD and from there it will prompt me to reformat the SSD hard drive and then go through the install.
One additional question I was thinking of installing Linux as well, and making this a dual-boot machine, would it be wise to install Linux first and then Win 8 Pro or the other way around?
Thanks again guys or maybe gals.
Hopefully end of March my main system will be:
Asus P8Z77-V Deluxe
16 GB ram
240 GB SSD
I'm not a gamer so I'll wait and see if a discrete graphic card is needed.
Unless it was one of the keys MS acidentally gave away when they were offering free Media Center upgrades and everyone who applied accidentally got a full Windows 8 key instead of the media center only key. Probably people selling those, which may or may not work and may or may not be revoked my MS when they are attempted to be activated.