Hey, been away for a while (and took forever to get through doomy's flames ;-) ) but yes! those screw holes are put on genaric PS units for diff. mounting possitions.
Their are PC motherboard stands that are shaped like a "C" or more like a "G" with a screw whole clip at the bottom of the clip.
This MIGHT be what you are looking for as it woulf mount into the top whole with out much modification...
Good Luck, I had to use a power drill and tin snips with my A1200 tower so Ifeel for ya.
