I did it a lot in the Army; got to do some cool stuff like night jumps and jump from 35,000 feet with an oxygen mask and tank, etc. I also did a few hundred static line jumps.
Getting certified in the civilian world takes a little while longer, and owning your own gear is expensive. But if you love it, there are clubs and other things you can get into that will help you share the costs as you get more experienced.
I never really got that into it in the civilian world because (1) I didn;t have time (2) it was my job in the Army, and (3) you can't do the cool stuff like night jumps, etc,
But if you ever have any technical questions or just want to shoot the shit, I can probably help you out. After all, it is where I got my screen name.