I used the Surefire EP-4 ear plugs last week and they worked OK outdoors. They didn't seal as well as some foam plugs from Walmart, but they did their job. I just got a set of Peltor 6S muffs, but haven't had a chance to try them out yet. Have heard great things about the Howard Leight units as well.
I've ordered twice from them recently and both times my orders shipped quickly and arrived on time. I didn't fax my FID into them though. I scanned and uploaded the image directly to my account so I don't know if that made a difference.