I've had my 6700 since December and in my area (NE Ohio), there are still no accessories available specifically for the 6700, not even at the Sprint stores. Your best bet is online. There a tons of sites. Boxwave is good. I got an 1800 mAh battery at
www.letstalk.com by UTStarcom made just for the 6700. It lasts soooo much longer than the standard battery, I paid 59 plus shipping. Its so much bigger tho that a new back piece had to come with it. I have since seen sites with the same battery with the silver back. A battery should be a priority. I know you want quick access with a case but the only cases I've seen are online and seemed to be the same style. I had my phone drop out of my case and hit the concrete. After the third time and some scuff marks I needed a solution. I know this will sound like a fruity fanny pack but I bought a small digital camera case. It's only about twice the size of the regular case and it slips throught the belt instead of strapping on. It has a main compartment and two small ones. In the main one I keep the phone and my headsets. (No quick access but a quick zipper so about same as regular case. In the front compartment I keep my Plantronics Bluetooth (and a mini chapstick tube, a tiny reath freshener, and some medication(yeah). In the rear compartment I keep my 1350 mAh battery and backing as well as some change. Two of my friends who have a 6700 and a Treo thought it was cool and boght similar ones. But I know that's not what you want. For headsets and cases the web is your best bet, Too many sites to name - just Google. Good luck!