Couple questions on Warrior
Right now condition builds for warriors are only useful on wvw/some unranked pvp. If you think about regular pve&dungeons then go zerker. For raising your crafting use informations from this site: http://gw2crafts.net/
IMO you are better off getting gear from dungeon tokens (Citadel of Flames, Crucible of Eternity, Arah) and laurels (ascended amulet, rings, accesories). Backpiece item you have to craft from mystic forge or farm some Fractals of the mists.
If you want full ascended gear then dont just think you will get it from open world. It is too rare (almost 2000h played, only 2 asc chests from open world) so craft armorsmith and weaponsmith to 500 as fast as you can.
Now the attack speed. No, currently there are no ways other than quickness to raise your attack speed with greatsword. Those videos show either Mesmer’s Timewarp elite skill or Guardian’s Feel My Wrath elite shout. On solo warrior you have quickness from Heightened Focus trait in discipline line and from Frenzy stance in your utility skills. When expansion (Heart of Thorns) will be releasend warrior will be able to unlock elite specialization called Berserker, which will increase your attack speed by 15% and give 3seconds of quickness on activation the berserk mode (F2-currently unavailable)