I've switched over entirely to exposure bracketing and HDR software, so I no longer use my Cokin size P Singh-Ray grad filters. I have both a hard and soft 2 stop graduated neutral density filter. Both come with original padded case and are E to E- condition using Adorama's criteria (http://www.adorama.com/catalog.tpl?op=itemlist&cat1=Used&cat2=Filters
). New $99 each. Also included are a Cokin P series holder, and a 58, 67, and 77 adapter ring. The holder sells for $12 at B&H, and the adapter rings are $19.32 each. This is all you need to start shooting with those mm sized lenses. $105, I'll pay postage.
email me at:firstname.lastname@example.org