As much as I like the name of Pergammos as the name of the planet. Fantasy settings tend to have a more generally evocative name. After some deliberation I've decided to call the setting Emberfrost. There are a few crappy myspace blogs that use the name, but in general it seems to be largely unclaimed. Hard to find these days.
At worst I can call it "Legends of Emberfrost" or "Lords of Emberfrost" or something like that to make it unique.