A proper build isn't necessary, just don't pick skills and feats at random. You probably wont see/do everything on a blind run, but that's part of the fun. The game is great and you'll replay it if you like it. I suggest playing completely blind first. I guess the one thing newbies need to know is to read everything and study the mechanics of the game early (in-game I mean, not on the wiki or whatever), and its better to focus your build than to dabble, but as you play you'll get a feel for how much you need in skills. Keep a few separate saves at least an hour apart each.