did ya use that 10 dollar code?
Otterbox Iphone4 Defender Case is the best way to defend you iPhone.
It does have a built-in screen protector and it works well to prevent scratches.
I have problems on my 3Gs where I get little bubbles under the plastic protector. You have to make sure it is completely completely clean when you put it on. I love the case though.
How long did it take for you to receive your otterbox I ordered mine last week and it still hasn't arrived. I didn't receive a tracking order or anything via email...