Badges burning a hole in my pocket

So my paladin has exactly 50 triumph badges in his inventory, which are enough to trade in for a shiny new helm, or almost enough for both gauntlets and shoulderpads. All of those need replacing, as I'm still in mostly blue gear. The question though is whether I should bother with the badge gear, or if I should skip it in favor of spending those badges on an heirloom for whatever class I end up rolling my worgen.

Which leads into the second choice - when Cataclysm is released in November we will be able to roll a character from one of the two new races, worgen and goblins. I'm somewhat interested in goblins, but worgen are going to be insanely cool, and they're an Alliance race, so it makes sense to roll one. But what I haven't decided yet is whether I'll be leveling a worgen right away or if I'll be taking one of my 80s on the WrA server (priest, paladin, rogue) to 85 first.

Supposedly, the new dungeons are actually difficult. This would surprise me since they're making all other aspects of the game much simpler and easier, but it gives me some hope that my rogue might actually be useful in Cataclysm. Possibly. We'll see. Healers and tanks, for sure, are going to be valuable, so I will probably make my worgen a druid. I don't currently have a druid on this server, and I am going to want to be able to group more to see the new content.

And a worgen moonkin sounds pretty natural - a wolf, howling at the moon?