Just keep on plucking them, don't shave your eyebrows plucking will last longer and look better. Its that little bit of extra effort you ll have to put in

.
When it comes to shaving your genitals I'd say a couple of things:
What kind of girls do you want, what do you expect of them in terms of genital hair style

and what would you like them to do in bed. - Make up your mind on that and you ll be able to decide if you want to or not.
If you do decide on it however, trim first as short as you can, have a nice long path to soak. Get good shaving foam and a good razor (possibly even a female one, because they are much better for your skin and much more sensitive). And shave in the direction of hair growth, not against.
I only trim these days and shave my ball sack, found that to be the most comfortable compromise and makes sure you are "well presented" without most of the itching.
Hope that is of help,
Len