Don't be so afraid!
Truenamer IS a bad class, but if you you get all the +truenaming stuff and the good utterances you'll be ok.

5(ranks) + 4(int) + 2(mwk item) + 3 (skill focus) = +14 on your truenaming check (whixh is not THAT bad) with no investment except for the Skill Focus (which you HaVE to take anyway)


later on, get the Amulet of silver tongue, a custom +truenaming enhancement item (you can) and join the paragnostic assembly.

(yeah, and read that handbook)