I recently received a Pentax K1000 from my boyfriend's father with only a Vivitar 70-210mm macro zoom lens. While it's proved quite useful to me, it's not exactly the most versatile lens in the world. I was thinking that I should probably also pick up a 50mm lens and a regular macro lens (focusing a macro zoom lens is so difficult :|). I was also considering a wide angle lens and a more powerful zoom lens (AKA, 400-600mm; that would be so helpful for photographing wildlife). Opinions would be appreciated.