**I've been playing Word Bearers for a couple of years now so I thought I comment.
Chaos Lord - Dark Blade, Furious Charge, Demonic Aura, Strength, Resilience, & Mark of Undivided - 135
**As the other poster mentioned, the Accursed Crozius would be good here for the 4+ inv., and Personal Icon. I would keep the D. Strength (S=5). I also run mine on a Bike. I love the Bike because my Lord can be almost absolutely anywhere in 2 turns to support where needed. Also good for shooting forward as the Daemon Bomb and I give mine a melta or plasma gun. (Yes, he gets pricey.)
9 Space Marines - CCW & Bolt Pistols, mark of undivided, icon bearer - 150
**These guys should be 135 pts. I use my marines for shooting. I would also recommend thinking about Infiltrate for a marine squad to help get those assault daemons as forward as possible. I use two plasma guns and an Asp. Champion and keep my squad as a short to mid-range firefighters.
10 Bloodletters - 260
**Bloodletters are amazing vs. marines. Personally, I think 10 is way too many. I wouldn't go above 8 and I often field just 7. They do well.
10 Daemonettes - 150
** These babes are cheap enough that 10 is okay and it helps give them survivability.
10 Horrors- 230
** As you mentioned, these are mistyped Flamers. I've played Flamers (just once) and really thought long and hard about them, but just can't include them in my army. They would be great vs. non-marines, but if (10) marines rapid fired on them (very easy since they must be within 18" to use Doombolt), the Flamers would suffer about 6 wounds (3 dead) and might fail Ld. I just can't include them in my army, but I do really like the concept of a shooty daemon squad. Somewhat of a personal choice.
6 Raptors - mark of undivided, 3 multi-meltas, icon bearer - 210
**I've never felt Raptors are worth their points so I rarely field mine (in my Night Lords). They've never made it in my WB army. This looks like a prime place to trade these guys out for more bulk in the army.
10 Furies - 150
**I really think Furies are a deal. 15 pts and they are S5, I5 and practically ALWAYS get into assault the turn they are summoned. Yes, a unit like Daemonettes is much more deadly than Furies, but if you factor in the fact that Daemonettes won't get into combat due to bad scatter sometimes, the Furies value goes up. (i.e., they almost ALWAYS get used for the intended purpose) Just be careful that 10 isn't too many to summon in without getting too close to the enemy models. These guys are a little bulky. Also, they are very so-so vs. marines. Don't ask too much of them vs. marines, but use them to support. They're also good at side attacks on vehicles/capturing objectives.
5 Havocs - mark of undivided, 4 lascannons, icon bearer - 215
** If you want the S9 vs armour, I would definately go with 5 Havocs with Missle Launchers and Tank Hunter. These will run a lean 170 pts, give you S9 vs armour, still kill marines with no save, and are tons better vs hordes.
Total - 1500 pts. & 62 models
My only real concern was not having the ability to take on many enemy heavies and having too few units from which I can summon. I only have 3 places demons can come from at the moment, but I don't necessarily want all my guys coming out on turn # 2. Please lend me some creative insight when you have the chance.
**By trimming the Bloodletters (and even 1-2 from the Furies and Daemonettes), dropping the Raptors and changing the Havocs you will free up quite a few points. With these I would put the Lord on a Bike, and buy more basic marines armed for shooting. The reason I say shooting is because your daemons are your best assault squads IMO. Get your marines in a decent spot for summoning by either Infiltration or some movement (I also use a Rhino to deliver my short to mid-range firefighters and a small Bike squad in larger games) and let them shoot and have your daemons do the assaulting.
**Last comment. Think about Mounted Daemonettes. I recently tried and then bought and painted these quick chicks. The reason I like them is because they are so potent offensively. These are another unit that will almost always get into assault (Cavalry). They are quite pricey at 28 pts, but again, a 15 pt daemonette is worthless if she never gets into assault and then gets shot up (generally speaking).
**Hope that helps,
Gorthrax the Beast