I am strongly considering race changing my main to worgen when cata hits and leveling another nelf druid before cata as a farm gathering toon. Shadowmeld/FlightForm is so OP for that and you can gather herbs while in FF, unless that has been changed since I was last an herber on my main (currently enchant/lw) so it is a no brainer to me. Yeah it is a little backwards to level another and not see the worgen content, but I am sure I will lvl another class with worgen eventually. Need to get my hands on some more BoA gear first...and fast.
I am thinking I would lvl as resto/balance and work my way through instances healing. My main is Boom/Feralcat - still haven't decided how I am going to do 80-85, but I originally went 1-74 Feral - 75-80 Boom with S4 PvP and TBC T6 resto gear...
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important info - I hate lvling and have no significant alts on my main server. I have a few 70s sprinkled here an there from previous servers that I left when I server xfered my main around.