Disclaimer: I would never call call this a case "MOD" I just installed some fans to get some more color and light in my case. I added a pair of 140mm fan and a 15" UV cold Cathode to my HAF yesterday so I thought I would share my opinions. The fans I bought are AeroCool Streamliner 140mm Blue LED fans from DirectCanada. The UV cathode Is made by Logisys and can be used with a sound activation feature (cool but rather useless) So first off it did take me a few days of searching to decide on the fans. Since the HAF is already a pretty quite case I didnt want to purchase two screaming loud fans even if they move a ton of air. The Sltreamliner fans are rotating @ 1000RMP and push 54.7CFM of air so I figured they would be quiet enough. I decided since my HIS 4850s are white/clear they would be UV reactive and would glow a nice purpleish indigo color so I grabbed the largest UV cathode I could find. I moved the stock 140mm exhaust fan to the bottom of the case and used the 140mm-120mm adapter that came with the Streamliners (see photo above). I used some zipties to fasten the second Streamliner to the case pushing directly across the RAM and in the general direction of the CPU cooler to make it a nice clean shotgun effect for the CPU, RAM, NB, and anything else in the way. I decided to run the UV vertically along the inside of the HDD/CD-ROM bays but I'm still undecided on the positioning of the UV. The cards do indeed glow as do the some of the orange accented pieces on my board but resulting glow just isnt as intense and I had hoped. The light from the fans is simply overpowering for the UV to really stand out but it does offer a nice subtle touch to the bottom of the case. Obviously installing all of this was easy and everything powered up on the first go. I was amazed by how quite the fans actually were. The HAF remains GF approved with these fans and I can say I'm quite satisfied. I cant comment on the temps yet because I reapplied the TIM and since it's AS5 I wont know how things improved until it sets. To be honest everything in this case is running so cool I'm not worried. So I have some photos to share. I'll get some better ones once I have a chance. Sorry for the quality Comments and suggestions are very much appreciated.