Well I checked New egg and Tiger Direct and even the site for my computer case's manufacturer, and I didn't come up with any good results. What I'm looking for is a variety of accessories for computer cases, namely the doors with fan ports in them. Reason being I'm looking for a simply better way to keep my graphics card(s) cooler. I figure since the fan and heatsink of most GFX make it difficult to put them right next to one another making other PCI slots unusable. So simply situation a fan/opening (almost) directly across from the GFX would allow for greater heat dissipation.
Also if others have better means of keeping the system cool please share them.
For most window kits you'll have to cut your own PC case side, as the heavy differences between brands and models of the same brand regarding the metal "guides" and shapes make it impossible to create windows for every case.
The advantage is you'll be able to place windows or heatsinks in the perfect places always with only a little bit of care.