In reply to Hotbad Peteel:
On your camera (D200), the 35mm is not wide-angle (it's around "normal") and your 50mm is a telephoto. From the shots on your flickr account, I would imagine that you're finding the 50mm is too narrow for the pictures you would like to take? I've found this is most noticeable indoors, where there is often not enough depth to use a telephoto for anything other than head shots.
I notice you also have a lens which takes you out to 18mm (18-70 or 18-135?). I'm presuming that you are using this with a tripod for some of the outdoors shots? If so, I would suggest that, for indoor photography, the low light performance is probably more important than an extra bit of width.
I have a 35mm f2 and indoor/low light is exactly the kind of photography I bought it for. I would add that, due to it's compact size and adaptability, it can stay on my camera for quite long periods. It's nice to know that you can shoot indoors and out, whether it's night or day...
Hope that helps,
J