Cosmos

As of this writing, cosmos has still not been officially updated for the new 1.5 patch. If you want to get it working, download the alpha build. I'm using it on my setup, and so far no problems. As soon as they release an updated official release version, I recommend you switch to that and no longer download the alpha build. The alpha build also currently has a few new tools that were not previously in cosmos, but were available as a seperate download such as Atlas and a tool for tracking damage dealt by party memebers.

In addition to cosmos, I also use and love:

• Mount Equip (currently testing the more sophisticated Equip Manager as a possible replacement)
• CT_RaidAssist
  (tracks player health/mana/buffs in 6+ man raid groups)
• Gatherer (remembers where you've found herbs/metals & other "gatherer" type items)
• Abandon Ship
  (automatically walks you off a boat/zepplin at your destination in case you take a bio break)
• I'm currently testing the various interface mods by Perl.
  

As of this writing, the above add-ons haven't been updated for this patch but seem to be working just fine.