Is it possible? I mean, I think it ought to be.. I have an Antec Df-85, and all the fans are variable, however, two of the fans have started rattling at highspeed and I don't need variable fans, since they sit at 100% all the time anyway, I was just wondering if it's possible to put regular fans in there, and if there would be any.. worries, or things to have to deal with in the replacement. Thanks for any answers 