Weapons:
Depending on your server, lower tier fabled may be relatively cheap (sub 1p per item) check the broker daily, see what you find.
Heritage quests: Serrated bone dirk from a HQ in Enchanted lands would be decent in the 40s...once you hit 50+ you'll want to buy something or go with master crafted.
as for AAs, the universal spec is Sta 4 4 4 8, wis 4 4 6 8 1. (while still dual wielding, dont fall into the round shield trap)
After that, do what you will. Some folks pick up strength line for blade dance, but keep in mind that the line is mostly worthless with the exception of the last skill. It doesnt do anything for you except keep your group alive for 1 aoe every 10 minutes. a waste of points imo. but some guilds rely on it for certain mobs.
Agility line is pretty good, Bump is wonderful (attack that places you in stealth, to make better use of your 2 stealth CAs) and Poison adds a good deal to your parse.
Int line can be viable too, raises your groups DPS mod, and attack skills, making orange mobs easier to hit specifically.
personally, as a raiding non-mt group dirge, I'm Agi 4 1, Sta 4 4 4 8, wis 4 4 6 8 1, int 4 4 6 6. I'm pretty happy with it.
As for the dirge tree (EoF) You'll want the luck line for sure. increase CoB duration, luck of the dirge, etc. Confront fear is nice and essentially gives dirges a no-effects rez every 45 seconds. Degradations is great for debuffing, makes them go faster, last longer, and take less power. You can get all 3 of those things as long as you plan out your points accordingly.
Those are my thoughts, im sure others may agree/disagree and post their own

but that should give you some options.