Of course none of these boards have on-board video - that's what the 8RGA+ series is for. The 8RDA+ is
supposed to come with Firewire - the manual has it listed, and IMO, that's the most reliable source right now. However, I'll let you know when I get my board in case someone here else hasn't had it in their hands first. Wouldn't be the first time a manual was wrong.
c627627, the non-plus version at Lynn Computers can be found
here. As for whether or not they'll ship, who knows? They have the plus version for $115, but it's also got a flat $15 shipping fee, so it comes out to $130, same as GameVE.
Edit: whatisnew.com seems to confirm that the 8RDA isn't supposed to be manufactured: "The Epox EP-8RDA motherboard will not be produced. EP-8RDA+ will be the released product model number." This was a news update on the 20th of this month - I don't think the non-plus versions will actually ship.
Edit again: I'm 99% sure the 8RDA+ DOES have on-board Firewire. Why? Take a look at this
screenshot posted by an Epox staff member on the AOA forums I linked above. And, no, he didn't add in a firewire card. Factor in that all pictures I've seen of the 8RDA+ have the IEEE-1394 connectors located at the spot they're shown to be in the manual, and I'd bet on the ponies that this board has Firewire.