I'm planning to buy two or three cases for my iPhone 3GS. I definitely want a silver case that matches the modern aluminum "Apple look". Since aluminum kills reception, I don't want an aluminum case. The Metallic Silver Incase Slider looks like a good choice, but it isn't available anywhere, and it might not look exactly like the silver color I'm looking for, though it's close. The Rebel Scholar Pure Silver case looks like a decent choice, though I haven't seen any pictures or videos of the pure silver case other than the stock photo on Rebel Scholar's site.