You betcha, comrade!
I've got three Q700s, well . . . two Q700s and another one with some kinda' extra slot equipped PPC MoBo hacked into it, all supporting a huge MDF shelf I built around my 40" plotter.
I'm in the process of doing a feets-graft on all three so that when I fire them up sometime, they won't burn up from having their lil' tuschies air vents blocked up by the nap of the living room carpet.
jt: inveterate hackmeister . . . =8-\