well my barb is a solo built, 5str/5vit has life/dmg
by the time i hit 71 i should have nearly 4.5k life-5k life
u really dont need that much as beginners, i pour all my points into str after, so even if i have a bad weapon @ each 5 lvls i can use one with no stats and gain lvls. str= pure dmg.
for dex imo all u need is about 80-120, ive recently been using a life steal charm over dex charm. if u hit about 100dmg-150dmg and ur lifesteal about 6% ull gain back about 10+ life per hit, since ur a barb sometimes ur barb armor will make the monsters dmg zero meaning u can heal for a few seconds. Havent tried with any other char because i

barbs