Just understand that a refurbished monitor is about as risky as you can get. Even if you get a quality warranty, monitors cost a ton to ship anywhere, and the problems they tend to have aren't likely to be something you'll be able to fix on your own.
Granted, you're generally screwed anytime your monitor goes out, whether it was refurbished or not. But with prices so low on monitors now anyway, I think it's worth it to pay some extra bucks for a monitor that hasn't already had problems.
Just my $.02.