Most are safe.
Add ons you want are
Titan (sometimes called TitanBar)
KTM Threat Meter (so you can see aggro)
SW Stats (So you can see damage)
Pratt (nice UI editing mod)
Atlas & Atlas loot Enchanced (Maps of all dungeons, raids, all loot in the game from boss/pvp/crafts)
Bayi's Extended Questlog (far better quest log)
CT RaidAssist (raiding mod)
BigWigs (Raid boss mod)
I use lots more, but this shud do u
