I'm putting together my first rack system, part of which is going to be an Ampeg SVP1600 power amp, which apparantly needs a LOT of breathing room. I guess I'm curious about a couple issues... 1) From those of you w/ racks, how do you recommend cooling? I'm already thinking I'll just leave a space above the power amp, and maybe just put a $10 clamp on desk fan on the back of the rack to assist in circulate air. (but I'm wondering if I'm not going to create a lot of line noise doing it). 2) I haven't looked at racks in depth yet, but haven't seen any that have premade side vents...how DO you cool your gear that has its cooling fans/vents on their sides? Hopefully, I'm not asking questions that haven't already been answered...but after playing for some 30 years and making my first "real" attempt at playing "semi" professionally, I want my sound to be tight, and that (to me, anyway) entails having pro gear that sounds bitchin'...I don't want to have to worry about overheating.