One major thing I will say before sharing my own anecdote is something that Jason over at
The Wild Hunt (awesome site for those of you yet to discover it!) posted is when you are confronted about your beliefs, do
not let them dictate your beliefs to you. By that I mean speak only of what you
do believe (divinity in all things, many paths, etc.), rather than let a conversation dwell on what you
don't believe (don't worship the Xtian Devil et al., etc.). This will reinforce for your listener, even if they come away believing you're going to hell (as a Heathen, I usually laugh), when they replay the conversation in their mind (and they will), all of
your talking points will be positive, non-threatening messages. Just my

.
As for dealing with overly-zealous family members, I have to admit I may get some on-the-job training with that. My mother-in-law has been aware of our (MrsV, LilV, and m'self) beliefs for a good while now (even watched LilV while we would go to coven meetings before that fell apart), but since moving closer to her own family (she's one of 13 siblings!), all of whom are very religous, she's become...well...a bit of a Jesus-freak, lacing nearly every phone conversation and Facebook message with a religious subtext. I hope I can keep a cool head and follow my own above advice when the (I believe inevitable) confrontation occurs. My own parents have been as supportive as you describe yours being, and what a blessing that is. I'm glad they're behind you in this.