The common component amongst all of us raiders, whether we're in Kara or pushing onto Sunwell, is that we need addons to make our life easier. There are several necessary ones: Deadly Boss Mods, Omen, ora2, Recount, DrDamage, etc... If you don't have these tonight, things can get markedly more complicated and difficult. The big problem with getting these addons is that they can be dreadfully hard to get a hold of. Most sites are bogged down to the point they're not working.
So let me make this easier for you. I've provided mirrors of several key updated patch 2.4 mods that I'll be using tonight to raid. Feel free to grab them from the links I've listed after the break. They'll only be up on these links for the next 24 hours or so – after that I'll replace the links with the addon's main site. The traffic should have subsided by then.
Read on after the break for addon mirrors!
Please leave a comment if you have any other major raiding addons you think should be included AND that have been updated.
I also highly recommend you update often tonight via WoWAceUpdater. This is really the only way to ensure that you're using the latest version. The addon authors have been updating throughout the day, and I'm sure they'll continue to do so tonight correcting all the little bugs that are going to pop up.
Good luck with your raiding!