This goes out to lpedraja2002 and madmax032 (since the quote function is apparently broken in the latest version of Chrome).....
Dovah-chan listed a number of m-Itx tower cases that allow for a sizable amount of storage space.
madmax032... You were attempting to shoehorn a GTX480 into a 1U server chassis, and power said 480 with a 1U server PSU. A PSU that isn't designed *IN THE LEAST* to power a GPU sucking down as much power as a 480.
The failure in your posted system build, ultimately, was you.
You put the GPU in an area that wouldn't provide adequate airflow for cooling. You built the system around a 1U server PSU.
And another thing.... No matter how many air exhausts you cut into a 1U server chassis.... 3x80/92/100mm fans will NOT provide enough airflow to cool ANYthing in that tight of a case with a GTX480 facing bass-ackwards