I will be wall-mounting my Z5 behind my seating area, and am looking for a good, solid wal-mount that is also aeshtetically pleasing. Has anyone got any recommendations? I haven't seen too many wall mounts "out there".

What would be wrong with a small bookshelf?

Simplicity counts....

Won't work in this case. The PJ will be mounted on an outside wall of a closet (in which all my A/V gear will be).

In all seriousness, and I'm really not trying to be a smarta$$ here, they MAKE "wall mounts" specifically for projectors that are something more than just a glorified shelf? What, pray tell, do they "do"? Seriously.

What sort of "mount" could it be other than a ceiling mount if you can't use a shelf? Sorry. I really don't understand the challenge here.

Well, for instance: http://www.intandemcanada.com/itoolkit.asp?pg=products&specific=jpcpepi4

The PBL-UMP from Premier Mounts might be a good fit. The website shows it for a Z4, but the Z5 is the same chassis.
The mount is designed as a ceiling mount, but can be flipped sideways to work as a wall mount as well. It would bolt to a single stud. The arm can telescope in or out up to 12" and you can hide your cables inside the arm for a clean look. It's also available in dark gray or white.

check Mount Direct, Wall mount.

Well, for instance: http://www.intandemcanada.com/itoolkit.asp?pg=products&specific=jpcpepi4

Well, that looks just peachy to me.

Good thing, they didn't show the price!