These addons are required for raiding.

KLHThreatMeter_v17.23 // Watching your threat

Decursive // Removes curses/magic/disease

GuildEventManager2 // Signup for raids

Bigwigs // Raid and boss warnings

CEnemeyCastBar_Natur // Enemy cast bar

SW_Stats_v2_beta // Damage meter

All Addons can be found at:

http://www.mediafire.com/download/pyvkq7qt9lk09dq/wow_addons_1.12.1.zip