Hopefully you know by now that FOSS4G will be in Portland this fall (if not, read this: https://2014.foss4g.org/about/)
Info about student discounts and volunteer opportunities have been posted on the website.
If you’re interested in attending (and you should be!) you can find all the information here: https://2014.foss4g.org/attending/discounts-and-grants/
Please note that volunteer slots are limited, so you should act soon.