I just plugged "ASUS A7V8X-X" into Google. Looked up first result, checked out the specs.
It says it is compatible with ATX form factor, so yes all ATX cases should work.
I imagine all newer boards are ATX compatible, they seem to be the common thing.
I argue with people on internet message boards.
Don\'t copy dat floppy!
Gigabyte GA-7DX(R) DualBIOS/A-bit KV8-Pro
AMD Duron 1.313GHZ/AMD 64 3000+ 2.0 GHZ
512 DDR266/1024 OCZ DDR (3200)
Chaintech GeForce 3 128mb/eVGA 6800GT 256mb
400 watt Powmax/530 watt Fortron
40.9GB 94098U8/80gb SATA
Maxtor DiamondMax/Seagate Barricuda
AOpen KF45A modded case