My advice would be to go with your gut instinct. If your this concerned about it I would go with the bigger size. It cant hurt. Its all about presentation. I believe either size is ok though. I admit many companies prefer the mail or faxed resumes. However, I'd suggest the snail mail route too and trying a combination of approaches. I say this because humans are prone to error. Think about that clerk from human resources that recieves all those emails and what the likelihood might be for a mistake. I admit the email/fax route is faster but sometimes theres nothing like mailing a hard copy of your resume. I think in some ways your resume is more likely to be seen by more people within the company. I could be wrong though. I hope this helps. Good luck.
http://www.greekchat.com/forums/ubb/smile.gif