As Repo said, a Motorola Talkabout is your best bet. As far as headsets go, use what is most comfortable. I tried the Swimmer style headsets and the bowman headsets and found them to be bulky and irritating for myself. Each person has there own preferences, so try some headsets out on the field before committing to buying anything. I will say to purchase a high quality headset though. Nothing is more annoying than having a crackling headset that doesn't work properly.
My current setup is the speaker mic that police use along with an Ear piece so that it doesn't broadcast to the world around me. I plan on switch to a PRIME or IASIS Throat mic though.
Hope this helps,
Brandon