For info on Mods, just type into any search engine computer mods and a ton of ideas will show up.
Fans, lights, blacklight mods, LEDs, case cutting mods, windows, anything that is not standard is basically a mods.
I have seen some pretty cool and stupid things. I have one of the stupid ones. I made made server case out of a milk create. Cooler ones have an Xbox built in, glowing water cooled and even a movable remote control case that carries its own monitor.
Mods are fun and can become habit forming. Sometimes to the extreme. I have spent a whole weekend drink Mountain Dew, cutting cases adding lights and fans and found myself looking at the clock because it was Monday morning and I haven't slept the entire weekend.
I but some other MODers and/or gamers have some of the same stories to tell.
There is even a MOD threads here with pictures. Look around.
Soyo Dragon Ultra Platinum Edition powered by a P4 3.06GHz w/HT @ 533FSB
ATI Radeon X800Pro 256DDR <---Yeah!!! I finally got it!!!
1024MB PC3200, Creative Audigy LS, 2 x 40GB = 80GB RAID 0
Windows XP Pro, DOOM 3, CS, UT2004, BF1942 RtoR, CNC Generals
Finished Half-Life 2!!!!!!!!!!