BTX Form Factor

[cyberphant0m]

I read in several different places that socket 939 64s will most likely use the BTX form factor. Will that mean that I'll have to get a BTX compatible case / PSU / etc...? And just out of curiousity, what does the B in BTX stand for?

 

[MDE]

Balanced Technology eXtended (BTX) Form Factor - The Future of Cases & Motherboards