I so regret giving my old one away, now I've seen what you could do:
Things to do with a old computer - More DIY How To Projects
What it puts me in mind of is Dave Veloz at Jake Von Slatt's The Steampunk Workshop, who makes the most divine keyboards etc, altered from old computer parts.Mac mini mod, keyboard & monitor
copyright Dave Veloz
And Jake Von Slatt shows step-by-step photos which explain exactly how to do it!
Here's the link to show you how to adapt your boring old Flat panel LCD monitor into a thing of beauty.