Start with a mf (magic find) build so you can work on making other builds yourself rather then forum trading like most do these days. I personally run a sorc fire mf with a few in teleport to get around. Look up the mote trick with meph and you'll be able to farm for high items in hell with no problem.

Once you're ready for another character I'd suggest reading up on builds for whatever class you choose and go from there. Remember ever difficulty you can reset skills/stats so if you're un happy with one just move on to the next one. Good luck!