Shortcut for Display->Wired/Solid/Textured

Hi all,

I am using Blender 2.5alpha2 on an 27" iMac.
I want to know if there is a shortcut key to make a single object displayed as wired/textured/solid etc.
I know the Z-Key, Alt-Z etc. but these set ALL objects to wired, solid etc…
But I only want to make active object appear wired, solid, textured, etc.
Under the display options one can choose this by mouse (see attached image), but I need a shortcut key to activate this quickly.
I need this to temporarily make current/active object transparent to look behind it.
May there is another way to achieve this?

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