NICE, a PC server makes for a badass stealth grow operation. Im planning my grow right now, acquiring parts etc...
If your willing to spend $$ for the odor control just buy a carbon scrubber, they can get pretty spendy, some last for 18 months... an alternative to buying the carbon scrubber would be make your own, pretty simple, or I've heard of people making filters with kitty litter, the filter lasted 3 grows before replacement for one guy...
If you use flouescents than you can drastically cut down on heat and maybe save some $$ on ur bill
due to the small 8.5" width your not going to squeeze more than 3 plants in there
looks like it'll be pretty inconspicuous, good luck man