Hi
Im new and i just saw Arduino and i would like to learn more about it! But where do i begin? Some good internet sites with alot of good tutorials?
If i buy a Arduino Board will i receive it in alot of small parts that i have to put together or just 1 big part?
That for the help!
If you buy one pre-assembled, it is one part.
Some good parts to get would be:
solderless breadboard
wire
LEDs
potentiometer
piezo
10k resistors
pushbuttons
I started with the blink example on the arduino tutorial page, and after you see how it works, try and editing it: maybe change the speed of blinking, adding syncopations, etc..
Then I would learn how to hook up pots and buttons. The first project I made without a tutorial was an led that could change brightness according to a potentiometer.
Also, the tutorials on the arduino website are useful.
Where do you begin? A lot of good tutorials? Start at http://earthshinedesign.co.uk/ASKManual/.
There are other links to beginner tutorials at the bottom of that page, too.
You can buy a assembled Arduino here:
But I would recommend actually buying a kit and assembling it yourself. I did it when I was 12 so it is not actually that hard and you learn a whole lot more. It is also slightly cheaper. (Quick disclaimer, I have been taking apart computers since I was 5, soldering since I was 7, and coding since I was 10.) 
This is the kit I bought:
http://www.nkcelectronics.com/freeduino-arduino-diecimila-compatible-board-complete-kit.html
It is called a freeduino but it is the same thing as an Arduino.
Here are some of the best tutorials:
http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=148
http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=145
I think, thas the best way to learn arduino is the good idea. Have an Idea and go it.
Do not forget about wiring and processing - with processing and arduino you may does a lot of interesting things!