I think so. Excepting the current trend of wearing the hair slicked back or having the sides cut as with a barber style "regular" mens haircut, mens long hair is generally about neglect. NO styling products, dry and unconditioned, split ends, carelessly cut once or twice a year for the sole purpose of making it shorter so it doesn't get caught in the fan blade when you're working on the car. Layers, even long ones, are a HUGE No-No. Anything you do that makes it look like you take of your hair (braids, fun colors) is going to give it a feminine edge.
If you like wearing it down I would really consider taking off about 4 inches so it isn't too far below your shoulders. Ponytails are worn low and tight. Some guys wear a series of elactic ponytailers spaced a couple inches apart down the length of the tail. That's kind of a cool look. My wife likes it when I flat iron my hair when I where a suit, but for everyday wear, I just bursh it 100 strokes in the morning and finger brush it the rest of the day. My hair isn't very oily so I have no problems going a week between washes (I like Wen). I let it air dry unless I have to go out in the cold.