Well, i have looked around the case, & i can confirm that the i/o is hidden behind a spring flap door at the bottom, but there is only 2 usb 2.0, headphone out + mic in, and a cutout for Firewire... i dont have any 3.0 ports (because of it's age of course). Well, i guess i don't have any way to test or know if the PSU is alive or dead, but i am still replacing it with a more powerfull/efficient one. I may keep it if it works, for a GPU or something; or take it apart for components. I will probably block the very small bottom plate fan port off. On one of my side panels there is a cutout with acrylic board and another 80mm fan. I think i may enlarge it to 120mm for a CPU AIO water cooler in the future. I know for a fact that i will only be using one Graphics Card, though. My next question is should i de-rivit the 3.5" drive bay rail and shorten it from either the bottom or top.