i'm helping my dad with his computer, it needs a new power supply, and i already have an antec 350 watt that i upgraded from in my PC. i hooked it up and it worked so i went to screw it into place and it turns out that because it has a power switch (like 90% of power supplies) it won't fit in dell's case. any one know of a replacement power supply for a dell desktop (nothing too fancy)?