hi guys! I'll be buying my very first slr camera. I've decided to go with the nikon d80 instead of d60 and d40 because of the price drop in d80. my concern right now is my everday lens. should i go with 18-55mm vr or 18-135mm? i'l be using it mostly when im in vacation, taking pictures of my family and the sceneries. hope to hear from you guys! thanks and best regards.