RCFProd :
B250, H270 and Z270 will work out of the box.
H110, B150, Z170 need a BIOS update.
Also, with the part lists you created, you forgot to factor in OS costs =/
Thats alright, as I have prepared a pc build
intel pentium g4560 - 78
asus prime b250m-k - 119
powercolor hd 6970 - free (received from a friend)
crucial 1x8gb ddr4 2133 megahertz - 65
antec ea550g 80+ bronze - 115 // xfx 550w ts psu
patriot blast 240gb ssd - 48
microsoft windows 10 - 129
asus vp228ne - 139
coolermaster devastator kb/m combo - 21
total - $714 // $688 AUD
The GPU isn't the greatest, but I plan on upgrading in maybe a year, for now it will serve it's purpose well as I am just planning on playing Overwatch and Rocket League at 1920x1080, and I am happy to play on medium settings. Also, are there any differences between b250 and h270?