Well the entire panel has a dust filter already behind it and the fan mesh I'm using to go behind the cutouts will only really be there for color and protection on the actual fan filter. I currently already have 2 fans installed up front and the bottom fan doesn't show at all because of the recessed mounting style for them. I'm thinking of getting some red led fans just to give it some shine and the mesh I'm getting should be dense enough to only allow the light to bleed through it slightly but it should pour out the original vents on the sides and bottom. It should look interesting
I saw your avatar and thought you were going to do the same thing I plan on doing to the H440: cutting out the Sith Empire logo in the front panel and backlighting it with LED's. Close, but not quite the same.