i wouldn't mind hearing a male computer voice.
I would. It has been researched that the sound of a female voice is better remembered than a man's voice for informational purposes. I don't have a reference but I heard it maybe 10 years ago or read it somewhere then. So set your car's GPS unit to a female voice...
Never heard that one, though I've heard that when it came for creating computer voices for military equipment, like aircraft and the like, they chose female voices, since due to the gender imbalance in the armed forces, a female voice would be more noticeable, so having a computer with a female voice would be of benefit.