I've just started the game and i'm looking to be an Assassin type character, well mainly a sneaky, stealthy archer with some magic abilities and possibly a one handed weapon for close range if needed. I've just leveled and i'm confused as to which attributes i should skill up either health, magika or stamina. Any help would be brilliant! Thanks

I believe that health is the most important attribute when starting out. After that, I'd pick more health. And then finally I'd finish it off with a little bit of stamina and magicka, and then some more health.

I say 1) Stamina 2) Health and no magicka increases until you decide how much you are going to use. you can add it every level then if you feel short.