This is a pretty old version of my ui, lots of changes since:

Unit Frames: Pitbull
Bars: Dominos
Buffs: Satrina Buff Frames / Elkano's Buff Bars
Minimap: Simpleminimap
SCT: Mik's Scrolling Battle Text
Chat: Prat
Fubar (friendfu, guildfu, moneyfu, lots of others)
Others: Sunn Viewport, TrinketMenu, Aloft, Autobar (trying to phase it out), Squire, GrimReaper, OptiTaunt, MagicMarker, Incubator, Power Auras, Redrange, OmniCC, VisualHeal
Something you can't see here is that when I hit alt or control, it completely changes my actionbars (another set of buttons) while the button is held down.