If you don't care about pressings and what not I have info for some others.
Taking Back Sunday's "Where You Want To Be":
http://www.victoryrecords.com/webstore/vinyl/t
ISHC - "Takin It Ova":
http://www.b9store.com/product/1182
(You can also get "Tip Of The Iceberg" and "Not Without A Fight" there still too)
H20 - "Nothing To Prove":
http://www.b9store.com/product/1962
Pretty much the B9store is fantastic.
Hot Topic is a good bet too.
Winds Of Plague - "Decimate The Weak":
http://www.hottopic.com/hottopic/Music/Vinyl/Winds-Of-Plague--Decimate-The-Weak-Vinyl-LP-391706.jsp
Refused's "The Shape Of Punk To Come" isn't online anymore but I know there are still some copies hanging around in-store. I always see them.
This Is Hell had all of their records on tour with them last summer. No idea id they still do or if you can even make it to a show of theirs. I picked up the Self-Titled, "Sundowning," "Misfortunes," and "Weight Of The World" for like $40 I think when I saw them last July.
In general, just check band merch stores, record label stores and general places such as Hot Topic, Shockhound (going out of business sale right now!) and MerchNow.
Good luck!