I started out with a silicon case but haven't used it since switching to the BSE. Without a case, the iPhone was a little too slippery, but the BSE gives it a good amount of grip. I also hated how the black silicon case covered up the jazzy styling of the iPhone. It was like putting wading boots on Cinderella.
The BSE combined with Power Supports Crystal Screen Protector is the BEST protection, if you don't want bulk, you can buy. Nearly invisible and less than $30 combined. The skin is amazing. Takes some patience to put on, but really comes out beautiful and gives you confidence that you wont scratch it up. Fits snuggly in the dock as well.
I can't praise the Crystal Screen enough. Not as tacky as the BSE screen, the application took all of 2 minutes and its PERFECT. Looks and feels just like the glass, and cleans just as easily.
OK, well it sounds like you guys already answered my question: Right now I have the power shure crystal film for my iPhone's screen, but am currently using the iSkin black. I just hate how it takes away from the iPhone's sexiness. So you guys are saying that use the best skin ever in combo with the power shure? Keeps the iphone look and gives it grip/scratch resistance. And it fits the DOCK!, the part I miss most about the iSkin!
I am doing the power support and bse also. I got the power support film the day it came out, and I've had to get another box (because I dinged the first one, and it's just that good of a screen protector)