Amazon itself is safer.

Be cautious of individual sellers. I had one guy that sold me an unreadable DS game... >_>

If you use Amazon, Al Qaeda will get your address through the intertubes and declare jihad on your family. I guess if you don't care about your family using Amazon is okay. 

Yes, I buy everything from amazon (prime membership is awesome).

ok do I have to sign something

when I get the game?

I ordered bioshock is it any good(plz no spoilers!!!)

No, its either left at your door by UPS, or in the mailbox by the postal service.

I played bioshock, its awesome. Very good story and atmosphere. Don't read about it or you'll spoil a 

a major plot event.

Amazon is amazing, I've ordered so many things off there

Amazon are now my preferred supplier. They have a good delivery track record and also more importantly a good returns track record. Also I have never hear of any member of its staff killing its customers so that has to be good right?

Very Safe, If you order from a individual seller Check their rating make sure they aren't Assholes.

Just make sure you leave a nice feedback, or else get read to board up those doors and windows! Lolz I kid, but seriously, I buy practically EVERYTHING now from amazon. Games, movies, books, CDs, I've even bought an electric shaver. In fact I have also used it as a place of business and have sold somewhere in the ballpark of $2,000 of old junk I would never use again anyway. I essentially have amazon to thank for not having to work for almost this whole year. I have never had a problem with either buying or selling, except a couple of pricks here or there leaving me bad reviews. They are the safest, most convenient, and usually the cheapest.

Andrew Ryan is actually Chuck Norris.

If you ask for recorded delivery, you have to sign. Otherwise, no.