I have a similar setup to yours Enndoh - i7 (stock cooling fan), GTX 285, etc. The Antec 902 fits everything very well, so the 1200 should be more than enough. I only ran into two small problems.
1) I had to remove the interior mid fan enclosure to accomodate the video card - not a big deal. The airflow is already excellent.
2) There wasn't much room for the rats nest of power cables that came with the power supply. It looks like the 1200 is taller and has more room. You should be fine there.
Enjoy the new setup!
Connect With Us