Low level groups can be found in Greater Faydark

[Dacien]

Orc Hill from 4-7 earns you not only xp, but a fair amount of CB belts, which sell for 3pp per. I made almost 100 plat by the time I was level 6 (granted I'm a Paladin).

Orc Hill is usually camped and often has a waiting list, but it's a great early spot. First thing I did when I dinged 3 on my dwarf was make the trek to Gfay.