Haven't read the book Bart mentioned - though I suspect it's pretty good.
IMO by far the best source of the info you are looking for is here - http://www.johnlsayers.com/phpBB2/index.php
And I mean, BY FAR.
But.... depending on your knowledge and experience in both general construction and studio-type construction, there's a lot to this. Seriously... A LOT.
But it's all there on that sight - and what's not there can be found out by simple asking. Though as you'll find out quick enough by skimming, asking question is not an acceptable shortcut to doing a bunch of the suggested reading - all right there on the sight.
In a nutshell, there are a number of basic principles (and some not so basic) that don't necessarily follow "common sense" that if you ignore or otherwise don't follow, your build will seriously under-perform for what you've paid for.
That said - it ain't rocket science either. I mean there's some rocket science behind it, but as a builder/designer you don't have to really know the rocket science, just respect it and know how to do what it suggests.
Having built a couple of studios, all I can suggest is take your time, figure it out, then run your plan past the guys on the Sayer's forum (which I wish had been around for my first build!!!).
And of course, post more questions here and I'll chime in where I think it might be helpful.
Good luck with your build,