you could use HDD coolers one at each end of the case to generate air flow. you should be able to get led ones in almost any coulor too
spray some 60mm fans that fit your spec to white, and fit your own led's. Having done a few of these, you MUST have good airflow through the case, in one end, out the other. you would be able to use 80mm's in a case the same size as the one i linked to btw.
i didnt use an lcd, couldnt afford one at the time. but you do need good airflow through the case, if you use ducts you will have dead stagnant areas, and hdd coolers will not push enough air.
you said in a case the same size as yours i would fit 80mm fans is this assumin i use a 15' lcd or 300'lcd???????
tbh i dont think it would matter. the circled fan is an 80mm on top of the psu, that and the fans attached to the lid are the only things that are actaully above the height where the lid and base join. The pci card sticks up a few mm. The reason the 2 fans are in the lid is becuase when i had the dual p2's in there, those fans brought in air straight onto the cpu's. I no longer have my that machine, but without those fans in the lid I think I could fit an lcd ~15". excuse the panel, i intended to make one from stainless steel and do a good job, but i ran out of time before i14, and i needed to use the machine as a colo server, so i had to have it finished, the aluminium was much quicker and easier to work with.