yeah, i haven't started with ZBrush yet, amazingly it's pretty cheap... well, it doesnt cost more than all my computer hardware unlike the major 3d players (excluding the free ones)
but you should probably try to get your head around Maya first, unless you're like me and have to learn lots of things all at once, i wouldnt worry about it yet.
that's a "Ch" pronounced as a "K"
Computer skills I should have:
Objective C, C#, Java, MEL. Python, C++, XML, JavaScript, XSLT, HTML, SQL, CSS, FXScript, Clips, SOAR, ActionScript, OpenGL, DirectX
Maya, XSI, Photoshop, AfterEffects, Motion, Illustrator, Flash, Swift3D