Here's what I'm using at the moment:
Inspired by way too many UI's posted on here to list, but most prominently Eph's and Caith's. Here's a complete addons list:
[!BugGrabber] [!StopTheSpam]
[AtlasLoot] [AtlasLoot_BCInstances]
[AtlasLoot_Crafting] [AtlasLoot_OldInstances]
[AtlasLoot_RepFactions] [AtlasLoot_SetsandPvP]
[AtlasLoot_WorldLoot] [AutoBar]
[AzCastBar] [AzCastBarOptions]
[Baggins] [Baggins_ClosetGnome]
[Baggins_Search] [Bartender3]
[BigBrother] [BigWigs]
[BigWigs_BlackTemple] [BigWigs_Extras]
[BigWigs_Hyjal] [BigWigs_KalecgosPortals]
[BigWigs_Karazhan] [BigWigs_NajAssist]
[BigWigs_Naxxramas] [BigWigs_Outland]
[BigWigs_Plugins] [BigWigs_SC]
[BigWigs_Sunwell] [BigWigs_TheEye]
[BigWigs_ZulAman] [Blizzard_AuctionUI]
[Blizzard_BattlefieldMinimap] [Blizzard_BindingUI]
[Blizzard_CombatLog] [Blizzard_CombatText]
[Blizzard_CraftUI] [Blizzard_GMSurveyUI]
[Blizzard_GuildBankUI] [Blizzard_InspectUI]
[Blizzard_ItemSocketingUI] [Blizzard_MacroUI]
[Blizzard_RaidUI] [Blizzard_TalentUI]
[Blizzard_TradeSkillUI] [Blizzard_TrainerUI]
[BugSack] [ClosetGnome]
[cyCircled] [cyCircled_Vol]
[EavesDrop] [Examiner]
[Fence] [FramesResized]
[FuBar] [FuBar_FriendsFu]
[FuBar_GroupFu] [FuBar_GuildFu]
[FuBar_MCPFu] [FuBar_SoulJarFu]
[gBuff] [gdFont]
[gMinimap] [gTweaks]
[kgPanels] [kgPanelsConfig]
[Mapster] [MobHealth]
[MultiTips] [nQuestLog]
[oChat] [Omen]
[OmniCC] [OmniCC_Options]
[OneBag] [oRA2]
[oRA2_Leader] [oRA2_Optional]
[oRA2_Participant] [oTaxi]
[PitBull] [pTags]
[RatingBuster] [Rep2]
[sct] [SCT_Cooldowns]
[sct_options] [SellFish]
[SharedMedia] [tekJunkSeller]
[TipTac] [TipTacOptions]
[Violation] [WitchHunt]
[WoWEquip] [XLoot]
[XLootGroup] [XLootMaster]
gBuff, gMinimap and gTweaks are my own little mods (though the first 2 are pretty heavily ripped off from haste and p3lim's mods, thus I probably won't release them from fear of reprisal from both of them).
I don't have an up-to-date raid screenshot, but the raid-only elements are still the same in the following screenshot as they are now, so it should suffice:
