New pro/con: "headphone" and "microphone" are not labeled on front i/o panel, the 900 is, so why isnt its bigger brother the 1200?
New pro/con: easy to access front I/O
New pro/con: dust covers for all intake fans
New pro/con: thumbscrews (its not toolless, but i myself prefer "non-toolless" cases...)
New pro/con: harddrive cages make it easy to remove harddrives
New pro/con: heavy
New pro/con: 5 120mm fans + 1 200mm fan come stock, with 'brace' for inner fan and side fan
New pro/con: Lots of room