They look sexy, amongst other rack gear....squeezing just the right mobo that fits the backplane openings is but 1 challenge....Just having a single PCI slot is not an issue...that'd be for my Layla 3 g card (with the supplied riser card)....video would have to be on-board, and I've seen low cost ATX or micro ATX that'd fit the bill....every case I've looked at, has vertical on-board audio connectors, which I'm told, will not fit a 1 U case...solution, de-solder!...questions would be how quiet are the packaged power supplies? Does standard sized memory chips fit? Do mobos these days come with the backplane bracket? Would a standard CPU fan be too tall? I'd like to have a setup dedicated for nothing but audio/recording, and a 1 U rackmount case would bring maximum happiness and joy