AMD Phenom X4 9950
ASRock AOD780GXE/128M AMD 780a Motherboard
Crucial Ballistix Red Tracer DDR2-800 4GB kit
Sapphire Radeon HD 4550
Sapphire Radeon HD 4650
Sapphire Radeon HD 4670
Sapphire Radeon HD 4850
Thermaltake V9 Midtower
Windows Vista Ultimate 32-bit
Not a lot to say about installation of a power supply. Mount the PSU in the case, connect the cables, and hide them the best you can. A case with a bottom mounted PSU does a little better with modular, but the Thermaltake V9 does allow for some decent cable management.
I wanted to start out with this tiny little video card, since it was the one already in the rig. Cute, isn't it?