No fan on those gridseeds at all? I find that the one fan I have cools them down pretty well.
[img ]http://i.imgur.com/OsOzcDZ.jpg[/img]
You can't see it in the picture, but there is a box fan to the right (on the first picture, left on the second). That moves the air around the room, and provides enough of an ambient airflow that they stay pretty cool.