Well, it looks like this thread was originally started in 2006, so I don't know if the OP is still looking for advice.
That said, I've learned to love a cock that has the shaft and balls shaved, and nothing else. Both my ex and my Master do it this way, and it's perfect. There's still the masculinity of the hair around the groin, but for any kind of oral pleasuring the lack of hair is ideal. I love not having to stop to pick hairs out of my mouth. Also, licking his balls when they are clean-shaven is a titillating experience for both parties.
My Master also trims the hair on his groin -- important because we go to sleep many nights with my head on his stomach and his cock in my mouth. If the hairs get too long, they tickle my face and nose, and I can't get to sleep.