Hi guys ! I'm looking forward to buy a protection case for my iPhone 4, but after a few hours spent searching on the internet, I couldn't make a decision for any one... So, as I wanted something convenient, durable, a bit aesthetic, with a good protection, I founded OtterBox's series, the Tech21 case, with the D3O technology (but I found only one good review about it...) and I just read some stuff about Seidio, Magpul and others... Do you have any experience with one of them ? Is the silicon protection really disturbing (dust) ? Which Otterbox do you prefer and why ? Thaaaaaanks for your help !