I'm actually more interested in Redsteel. I love the look of the game, and never really got huge into the Zelda series. By all means, if your a Zelda fan, you'll want this title no doubt, but if your looking for a nice launch fps, I think Redsteel or COD3 win. No doubt, I will get Zelda eventually, just not first on my list.
Think of it this way, playing Hawk on the Wii should be entirely different than the GC counterpart... so I can almost guarantee you'll enjoy it more. Don't go crazy on launch though, you might end up more disappointed than you'd think.