Well, I've played a warrior since day 1 on this server and I've got to say, I've never had a huge issue with aggro. Even in the infancy stages of a warrior, you can still manage aggro effectively.
What I think many people fail to realize, is that the dps classes needs to adjust accordingly to the warrior's aggro generation (If your warrior doesn't have gloves, don't nuke the same as if he had gloves). As for my warrior, during the time before he had gloves, I participated in a lot of traekoth raids (giving the early raid scene without gloves). Now on those raids I had no other aggro generation besides attack and procs, but I still managed to hold aggro on those fights because the casters adjusted their dps accordingly. As for grind groups, you're just going to have to give the tank more time to generate aggro, maybe try using rains with the casters, or getting -aggression items on the casters.
This server offers a variety of ways to improve warrior aggro and some are available to early tanks. I see no reason why more need to be added, but I'm not opposed to it if they decide to add another alternative

. Here is a general list:
Weapon Procs: Variety of weapons that generate pure aggro or a decent nuke/dot/debuff (Blacksmiths make some too)
Spell Procs: Given by bards and wizards (DDs that proc off your attacks) / Melwin's Idol of joy from MielechC (Werefrog: 80-100ish lifetap) (55-65ish group) (Can be bought with fame points as well iirc)
Warrior Starfalls: 2-hander(not ideal but procs a dd) / Boots (PROC AGGRO)
Clickies: A large variety of them with different effects (Sandjaw 30ish adept has a blind ring / Parcelean has root/stun/fear rings / Snow leopard adept in frosthorn drops an instant clicky malise)
Aggression enhancing items: Collar of the Fluxator(+4 and bought easily) / Newport Quest ring (+3 55ish quest) / AWT mask(+2?) / T-map Quest item for tanks(+3) / probably plenty more, but those are the ones in my head.
Cmal gloves: Cmal 1 gloves (can bring groups here around 55) Cmal 3 gloves (65 with a 40ish AA's I'd say) Both a luxury to have, but not a requirement to hold good aggro imo (sure they are nice to have, but don't blame having bad aggro on not having these gloves).
Warrior's Advanced Anatomy AA: Generates aggro on every hit thus improving overall aggro. Now you can say why not make it easier to obtain, but it just goes with what this game is built on. You get AA's on any class and you get better at what you do...Wizards nuke harder, rogues dps better , clerics heal for more , WARRIORS GET BETTER AGGRO, etc, etc.
Clearly, on some fights, you can't rely on a proc for aggro, so I would suggest looking at the aggression items for a steady improvement on aggro issues.
As for the original poster for this thread, I hope I've given you more than enough options for your dilemma. Like I said before, DPS classes need to adjust to whatever tank they are using. Clearly, every tank is different and you just need to get a feel for where the line is drawn between where your warrior is tanking and where the mob is on the loose killing the casters. In general, a decent warrior should have a feel on where his aggro lies and should let you know where he stands!
-Braxx ~Aeternus~ :hmph: