Have fun!
Don't be afraid to start over if you don't like the character you make - the rules and so on are very different to what you've probably played before and it's a big big game, so lots of time to perfect new characters! Huge actually!
Don't get disheartened by just how enormous the world is - it will take you ages to explore it and do all the quests and everything, even without the expansions. It's very non-linear and it can be frustrating that you've been playing for ages and you've been doing quest after quest and you realise you haven't done any of the main quest lol!
And yeah, have a great time! I don't know exactly what other advice would be helpful, but be sure to come ask any specific questions you have as people always know the answers [img]smile.gif[/img]
Oh make sure you install all the expansions initially; not, as I did, just Morrowind and then when I was finished the main quest (which doesn't end the game at all btw

), Tribunal. It took about 2 hours to do the install!