Comms can get
really expensive. What are you looking for in this setup? Is it just a "I want to talk to a buddy" or "I want to be able to hear a mouse fart from 20 yards away" type of deal? There's a bunch of designs with an array of features to choose from.
Motorola make decent two way radios and you won't need a licence to use them. Something like
this would be great for a few guys and if you split the cost it would help. You can set it up with a PTT or headset and they're perfect for woodland environments as they're completely weatherproof. Of course if it's just two of you then you could get a twin pack at half the price.
Here's a good thread you may want to read:
well its not like i want to hear everything but that would help also. But mostly needs headset to talk to squad mates and rest of the team.