2 live on the floor (one next to 1 desk - Full tower) and the other under another desk. Another PC lives caseless on a desk.
Mine lives on the desk, though it's more of an L-Shaped unit built into my bedroom. Just enough depth to take my chunky Yeong Yang. Putting it on the floor would be a serious trip hazard. The monitor however, is mounted to the ceiling...
here is my set up: no pc on the pc shelf, as it is behind the lappy while i work on it. big speakers and amp at home, 7.1 at uni!
Mine's on the desk. It's a "Brick" (not the shape, the name) On the front it advertises "486DX 33MHz VL" With heavily modified insides, original outsides. Very nice, i love it, too loud though, that will be my next headache.
Keep my shuttle st20g5 on my desk, but i used to keep my ATX rig on the floor. A shuttle just wouldn't look right on the floor, being so teeny and all.
If I had the space it'd go on the desk, but a v2000 doesn't fit there too well unfortunately. A shame really. Floor it is. Just barely squeezes under the edge of my keyboard drawer thing.
I have a desk right under my Ikea bunkbed but then I don't really have space for my computer and it would be too heavy cause the table is too long. So the Lian-li sits comfortably on the floor...
My PC has neither the looks, size or silence to have the privelidge of goin on my desk Whist I toyed with the Mac Mini that sat nicely on the desk though, of course
mine is under because i dont know how much my glass desk can hold and i really dont want to wakeup to a loud crash and see my CPU falling to a tile floor that would be bad