I have lost faith in Adobe because they cannot get their products working on case sensitive HFS volumes. The problem has existed for almost a decade I think. The fact that one cannot install Creative Suite on another volume makes it even worse.
One example of the tail wagging the dog: http://forums.adobe.com/message/3311504
(TLDR: NTFS itself is Case sensitive even though the Win32 API isn't because NT was/is designed for POSIX compliance)
(I remember wasting a lot of time once on a rookie mistake where I had a Perl script with "use Strict;" in it instead of "use strict;", it worked fine on Mac OS (OS9, in this case), but failed in at-the-time-inexplicable ways when deployed on unix. I suspect my habig of insisting on choosing case-sensitive filesystem stems largely from that… And yeah, doing perl/cgi webdev on Mac OS9 was a really bad idea, I discovered.)