The saber crystals turn your saber orange and light blue and make the other crystals even better. The baragwin droid stuff gives them unlimited Flame thrower, shield, stun etc. If your repair skill is high enough and you repair HK47 all the way, he is worthy to be in your party with the baragwin stuff. He's good enough to hang with the jedi :D And MC you may want to concentrate on melee feats for when you get a light saber :D <3 the prototype vibroblade upgraded