Hi Drew, vanilla is in subtribe Vanillinae, tribe Vanilleae. Any time you have taxonomy questions, Sue put up a great page on his website you can use for reference: http://webpages.charter.net/dylansuz...chidaceae.html
As far as the best way to grow them, I've got mine against the southern GH wall where it gets lots of bright light as for standard Catts. I fertilize it with every watering (just use whatever you're using for your other orchids). Your humidity and temps sound perfect. Like dosal said in the other thread though, flowers only last a day, 2 on the outside, so don't miss it when it blooms! Mine only blooms once a year, and it already did, last month.