OK so my Antec SX830 is getting dusty as hell. The case itself didnt come with filters (I see descriptions of the SX835 that say it comes with a washable filter... what does that look like?), but I put one on in the front of the HD fan, and it has worked very well. For those of you that know about the SX830 or have one, what would you recommend for filling in the lower front fin area... it almost looks like i can fit a piece of standard air filter in there, but i like the material from the 2 fan filters i bought are in... They're about a 1/8" thick, and a bit more dense. Anybody know where I might be able to find some of this material?