So let's see, things we are interested in:
Von Luckner tanks.
ACS suits as upgrade to MI, possibly additional squad or trade-in of prawn suits.
NOD AT-5 Stealth Tanks.
Replacement/Additional VF-25s, plus VB-6s.
More White Mages
Upgrades. Better armor, more stealth, possibly other gear. Generally agreed on, but little detail settled. Suggestion of Naruni stealth armor and forcefields. Mass Effect has nice gear as well.
Engineers and/or Gavs.
Techno-Wizards (spell casting, research, 'bridging technology and magic'), Rifts Earth.
Warcraft 3 Paladins at level 6 or above, has an area rez of some sort.
Neo Gotengo 'class' ship.
Macross Quarter (possibly with discount on VF-25s and VB-6s)
Additional Al'kesh craft.
Otherwise we're leaning toward ship upgrades. Shields for those without, weapon upgrades, Engineering upgrades.
Rupert Giles, from the Buffyverse. (List maker suggests including a library of reference material with that)
Dr. Todd 'Lazarus' Lazkowicz and/or a copy of his Magic Cryokit's EMH, Schlockverse.
The Mentor, from 'Orcs Must Die!'.
Agrias Oaks, Final Fantasy Tactics.
Fabbers, or fabber upgrades to Creation Engine.
Incursion tech for faking out locals.
Economizers for White Mage.
Ethers or means to make them.
Mobile Emitters for dueling Federation and Schlock EMHs, I mean for them to provide on-scene medical attention.
Looks like about it for recent suggestions. Getter hasn't gotten any support in this thread, if I missed anything else it hasn't been discussed much.