Brand new Incredible owner here. I'm VERY interested in upgrading to the Seidio Innocell 3500 mAh Extended Life Battery. But I'm also paranoid about carrying my phone around in a nice case. I know Seidio has promised a hard case that fits the battery, but it's not available yet. Are there any cases out there I CAN use? Or do have to get out my Xacto-Knife and make a large cut-out out of my current gel case?