That's definitely the standard Steed of the Lore-Master. The steed pack you buy from the LOTRO store has both the steed and the war-steed cosmetics included. You get the accessories, the caparison, the halter, and the leg wraps along for the warsteed, along with the basic steed.
It's 1995 TP I believe, so it is pricey, but you get it from the store, and it was not, as far as I know, a part of any pre-order pack.
(And Supergirl's blog is awesome )
Galadhloth, Hunter 100, Glirithil, Mini 100, Calanor, LM 100, plus lots and lots of alts
Watchers of Elendil ~ Landroval ~ Crickhollow ~ Tarciryan Knights
~~~~ Imladris in the Forgotten West ~~~~