If you don't mind some suggestions on things to change...
CleanMiniMap -> MapScroll (Ace)
Decursive -> CTRA, latest version has that function built in
LootLink -> KC_Items (Ace)
LS_Chat -> ChatScroll (Ace)
MapNotes -> MapNotes Surfed (not Sea dependent)
SelfCast -> ActOnMe (Ace)
GoodInspect -> InspectorAce (Ace)
Wardrobe -> Wardrobe No Sea, found in the "AddOn Ideas and Requests" forum here
Looking over your list, I see three or four separate AddOns just for modifying your tooltips...are they all necessary? You have both Visor and MoveAnything! Is there anything you really need MoveAnything! for that Visor can't do? Not sure what SaveSell is, but guessing from the name I'd think it could be replaced with either Zoot or Sell-O-Matic.
Anything which maintains a database (ie Gatherer, ReagentData, MobHealth, LootLink, etc) will tend to slow down your interface as the database grows.
Not really a suggestion for paring down your AddOns, but you may want to take a look at a new AddOn on Curse called eCastingBar to replace CastTime. It makes the cast bar bigger, dragable, has a built in timer, and much better colors than the default cast time bar (especially since they made it ugly in patch 1.7).