The Helms deep 5 pack is definietly out, I got one today!
I haven't opened it yet, but I can already tell that Haldir is an awesome figure. I would compare it to the Elven Archer from the 2 pack. The Aragorn figure does appear to be just a tiny bit different than the single card release, he's got a few strands of hair painted on his forehead (looks a lot better IMO).
The other 3 figures appear to be the exact same as the single card versions to me (except that Gimli is missing his cloak). It is a very nice looking display piece, and I may just keep this one sealed (it is a lot smaller than the fellowship box set).