Funny, I just used regular paper on my interviews, or just posted my resumes online. I wouldn't waste good resume paper, costing almost $1 a sheet, on a career fair. You'll hopefully be handing out tons of them, and it will cost you a fortune. Just make sure that your resume is filled with buzzwords, has no typos, and that your print heads didn't clogged during printing. I once had throw out half of my resume copies due to smudges for that reason, and almost ran out of copies during one on-site interview.