Guildenstern:
After converting the BFSP box dwarfs to CD and gobbos to hobgobbos, will we see how to convert 6th Edition box Orcs to nasty black orcs under CD regime?
Xander:
A black orc box set is coming out very soon. No need to convert them, unless you want to save a few bucks, I guess. The new plastics are stellar though.
Chaos Dwarfs can run straight Orc Boyz anyways. So converting Orcs to Slave Orcs might be a more worth while endeavour.
Cheers. :hat off
cornixt:
If you still fancy it, then try this:
http://obsidianhalls.mysite.wanadoo-members.co.uk/resources/OrcConversions-SO-BO.pdf
Xander:
I just found this page:
http://uk.games-workshop.com/orcsandgoblins/miniature-gallery/6/
"As the tribes expanded, migrated north, and learned the secret of metalworking from the Chaos Dwarfs, a few tribes were left behind in the south."
Is this in the new Orc army book also?
AGPO:
It is indeed, just along side the entry for the Black Orcs which also mentions the Chaos Dwarfs
Xander:
Sweet, awesome stuff. GW really seems to be sowing the seeds of the Chaos Dwarfs into 7th, far more than they did in 6th. 
Guildenstern:
I just want to use this stupid orcs :sick
metro_gnome:
regular boyz iz far better than Blorcs… you can use twice as many…
cornixt:
Common Orcs are a real bargain. A unit of 20 is not only an excellent missile shield but can also hold their own in combat if you play someone with little shooting, unlike Hobgobs.
AGPO:
CDs are indeed all over the place in background terms. However, if anything this seems to make me think that they may well soon become a DoW choice rather than an army. There have been references in the following GW books, to my knowledge:
Storm of Chaos
Orcs and Goblins
Grudgebearer
Ogre Kingdoms
7th edition army books
oboudd:
i think orc boys rule
i killed 54 skellys in 1 turn
Slaver_of_Zharr:
you forgot the rule book:hashut
There have been references in the following GW books, to my knowledge:
Storm of Chaos
Orcs and Goblins
Grudgebearer
Ogre Kingdoms
7th edition army books
AGPO
AGPO:
I meant to put rule book rather than army book 
metro_gnome:
and Liber Chaotica: Khorne…
AGPO:
haven’t seen that one, what does it say?
Lord Zarkov:
Also both of the last two -Slayer books
Uzkul Werit:
And in Trollslayer.
AGPO:
Yes, but trollslayer was published during 5th edition when the CDs were very much still a widely available army