breton is a great choice for a warrior/tank style, it's what my original character is... their automatic magic resistance (25% i think) makes it easier early on when you're faced with wizards and people that try to put spells on you... plus, in the end, they can really round out nicely into a true warrior...
here's a place to break down the character classes to help you better decide on a race... think about the style of play you want to do and find a race that best matches up with those skills...
http://elderscrolls....es_%28Skyrim%29
this website will be all you need to play this game... stuck?? look up the area or the quest here...
http://elderscrolls....com/wiki/Skyrim
bookmark it... plus, you have us for when you have questions... work on smithing as much as possible early on... it's one of the most important skills in skyrim, no matter what race you choose for your character... all weapons and armor can be created with this skill, and all weapons are armor can be improved with this skill... also, bring a pickaxe with you when you first get your hands on one... caves all across skyrim hold ore just waiting to be mined for smithing...