Warrior can get full set pvp gear & weapon from pvp vendor at lvl 60 & 70. But that require patience and a substantial amount of game play time. Imagine how long it takes to farm 300 war medal & 300,000 honor point!

At lvl 49/50 u can get your berzeker bracer, plate greave, sergent cloak (3 good stuff) from pvp vendor. I am afraid u have to run instances or buy from AH for the helm, shoulder, legging, breast plate & other stuff. Kill & get killed in maraudon (esp the second part portal where the princess is), zulfarak, uldaman, brd. If u are mining & blacksmithing u can gather the mats & craft Truesilver breastplate & titanic legging.

At lvl 40 - 50 dont forget to spare some gold (about 250g) for epic kang (if u use axe). They are very rare. Chk the AH often. I spent about 300g (200g for the axe & 100g crusader). U can use this axe until lvl 59 no problem.