Help finding a case

Hello people! I plan on building a PC and the hardest part so far is finding a case. I have a few requirements:

*White (not necessary needed, white is just my color of choice)

*Mid-size ATX case, preferably a bit roomy as this is my first time building a PC

*A 'window' type thing on the side, I want to look at my work when I'm done

I really just have no idea where to look either, so if anyone has any recommendations on a place to shop around or a specific case it would be much appreciated!