Its a 72 mm and I have an antec 300, and the closest homedepot/lowes/ace is forever away. I am sure I can cut holes where I need them without losing standoffs, I was just wondering if anyone has cut oversized cable management hole in their 300s, or any case for that matter. the only problem I foresee is that the holes will overlap against the mobo, so the wires my pull on the mobo, but I don't think it will be a huge deal. Suggestions, thoughts? Severe discouragement?