I've tried putting in Apple Headphones w/ Mic, and they just give a ton load of static when completely pushed in, if I pull it slightly outward, to the second line on the jack, one side works, and sometimes both. Why does this happen?

I wanted to get a new pair of earbuds with a microphone, but I'm scared it won't be compatible with my N900.

Could you please name some?
Just an idea, would say, Skullcandy FMJ's w/ Mic work with the N900? Confirmation would be appreciated, thanks guys.