Ctyler,
I also tried the case silencing thing and I ran into to the same obstacle as you... The sound will seep out of the output fan!!! But I did find that lining the inside of the case with thick carpet padding did have some effect and was FREE! I once tried to build a muffler for the output fan on the power supply and case fan but this was a total flop :) Probably because the only material I had was cardboard...Man Alive!!!
I also tried the case silencing thing and I ran into to the same obstacle as you... The sound will seep out of the output fan!!! But I did find that lining the inside of the case with thick carpet padding did have some effect and was FREE! I once tried to build a muffler for the output fan on the power supply and case fan but this was a total flop :) Probably because the only material I had was cardboard...Man Alive!!!