USC Football Ticket Advice??

[Gopher Jacket Guy]

Good evening there! Will be at the USC game but haven't obtained tickets yet. What's the best advice for purchasing tickets? Want to get decent seats (not in the nosebleeds), preferably within 20 rows or so of the field. Has anybody purchased tickets from a scalper there before? I saw someone had mentioned you could purchase tickets from a scalper for $10 but wasn't sure if that comment was made sarcastically. Otherwise am just thinking about purchasing tickets through ebay, stubhub, or craigslist. Will be needing the odd number of 3 tickets which I think will be a bit of a pain.

Thanks much in advance. And go Gophers.