Ok so im planning on getting a new camera and I was kinda settled on the D40 until I saw the K200D from pentax. I am pretty new to slr's but not completly. Ive used one before and ive read up on how to use them. The thing that made me look at the pentax was that I will be shooting mostly mountain biking so it will be outdoors in the dirt,dust and rain and the pentax says it has all the seals and is waterproof/dustproof. So im wondering if its worth it to pay more money to get that than the D40 or will it be fine? Also which camera is actually better?