well, the thing with mine is that it is really small, so after having put the x800GTO, 2x80mm fans cable tied to the back, cathodes etc, it is very cramped.
I might have one, when I take my parents old pc away I'll open her and see.... I built that one 97-98 ish, when I was drinking alot, and considered 6 screws holding down the motherboard to be 'overkill'.... I'll leave the dust bunnies too it hasn't been cleaned in about 2-3 years or so.
john, i have a dell like that too and its pretty messy. but if you think that is messy wait till i post some pics of the pc i built. Once i can get some pics i'll post them.