Basically, it's fork of Funkydude's BasicChatMods with some tweaks by ALZA and some stolen code from Low Memory Chat by Jaliborc.

Features:

• completely transparent and stripped input box at the top of chat frame
  
• all buttons removed, except the scroll back, which is shown only when chat is scrolled up
  
• scroll chat with mouswheel (if you're holding shift you will be scrolled to top/bottom)
  
• no need to hold alt for moving cursor in input box
  
• removed hover for chat background
  
• chat fading disabled
  
• channel names are shortened ([Raid] becomes r, [Raid Leader] - R etc.)
  
• button for copying chat text and ability to copy urls from chat
  
• sticky channels
  
• tell target (/tt) function
  
• alt-click inviting from chat
  

Please, note, this addon perfectly suites my personal needs and there won't be adding any features by request likely, only fixing bugs.

Latest alpha can be found at http:github.com/ichik/IntricateChatMods.

Please, submit bugs at http:github.com/ichik/IntricateChatMods/issues