Actually, my first level was in rogue (thus explaining why I had enough skill points to put a rank in so many trained-only skills =P).
I don't get where all the monetary cost comes from (probably from asking the manifester to pay experience, I suppose, but I don't know where that price calculation is), but if that's the only way to go through retraining, I suppose I should...
Also, we should get some teamwork training in when we get back to travelling using the wagon.
-Door Procedures can be situationally useful, and the requirements are easy to meet, but people tend to get annoyed by "hey come here I want to check this door"
-Friendly Fire Evasion is interesting, but it would require almost everyone to put a cross-classs rank in spellcraft, and- this is the key downside- involves shooting offensive spells at allies
-Group Trance would be AWESOME since we're apparently in danger of nighttime attacks; if we have one elf available, we can have the casters sleep for 8 hours while the fighters organize themselves into 2 shifts of four hours. (the problem is, we don't have enough warriors...)
-Infiltration would be good to have for situations just like the one we had last session, where we're all sneaking around an enemy base. And with the Dwarven clan wars starting up, that might just happen again.
-Invisibility Sweep could be useful, I suppose, if we end up fighting a lot of invisible enemies and someone is willing to take Blindfight... at least it has no prerequisites for membership.
-Massed Charge would be interesting if we had more characters who could do interesting things with charging actions... I suppose we'd all be doing a flanking charge, with Island of Blades stance on... but it requires a lot of ranks in balance, which a lot of people just don't have any spare ranks for.
-Search Team might be interesting for looking for loot very fast, I've got max ranks in search if anyone cares...
-Snap Out Of It is rather situational, but I think most of us have at least 1 rank in concentration, and it will help long-lasting mind-affecting powers that hit us...
-Spell Barrage would be more useful if we used more offensive spells/powers/maneuvers, and Red decides that magic and psionics are completely interchangeable here
-Superior Flank isn't too great for us, due to Island of Blades stance
-Team Rush would be somewhat useful if we had a monk or barbarian in the group (dammit Syelyi), or a PC horse with ranks in Survival...
-Team Shield Maneuver would be more useful if more of us had shields... I have a buckler, does that count? But someone would still need to take Shield Specialization, so... meh.
I recommend Group Trance, myself. Having everyone recover all their spells and powers every day is important.