I'm going to be ordering a 2.8 iMac tonight when I get home, and was wondering how the live in a dusty enviorment? I live on a ranch, in a 100+ year old house with pets. I have had a mbp for about 4yrs now and I just keep some dustoff handy for under the keyboard and such. Wondering if that's the same general concept with the iMac? Also for the monitor is regular glass cleaner fine? I use a microfiber and optical lens spray for the mbp should I use that on the iMac as well or will a paper towel and windex be fine? TIA