Which arduino to buy?

Hello!

I am an arduino beginner. I want to buy an arduino and be able to connect it with my android phone. Basically I have seen on the web an application when a guy turns on a light from his android phone and I want to do the same. So the first question (out of many:P) is which arduino to buy?

Thanks for your time..

(deleted)

yes but I don't know which one it is. It is a video on youtube, and it is not mentioned.

Here is the link http://www.youtube.com/watch?v=-x3a8yL6lPc

(deleted)

Yes, use an UNO with an Ethernet shield, even though it looks cooler when you put the Ethernet on a Proto Shield… Just a suggestion.

The UNO with the Proto Shield is $50 at Radioshack. Dunno about the Ethernet Shield, my local RS doesn't carry those.

So which one to buy?

I have found this: http://store.arduino.cc/ww/index.php?main_page=product_info&cPath=11_12&products_id=141

Will I do my job with this? Do I have to buy the “shield” from the link you gave me? http://store.arduino.cc/ww/index.php?main_page=product_info&cPath=11_12&products_id=141

Do I need them both or only the first one?