ok, i've finally planned out my ventilation system. As i don't want to damage my cabinet by putting holes in it, i plan on using mdf and closing off the back of the cabinet. I will use foil and stick it onto the mdf.
Cool air is going to come in from the bottom left which is where a 3 inch mini box fan will go.
The warm air will rise and exit at the top right hole.

Here are some pictures to show you what i mean.
I have one question.

Where do i cut the adaptor so i can connect the wires with the fan? Just after the cylinder thing or before? Thanks peepawl:smokin:

Heres what i'm gonna use -