As a beginner, not that long ago, I originally purchased my DW's dslr with the standard 18-55. I soon learned that we needed a zoom out to 200mm. I had a choice of going with an all in one or a 50-200mm. The all in one was a little slow on the long side, so I decided to go with the 50-200mm and change lenses. Since then my photography has become more specialized in sports photography (auto racing), I have needed low light capability. Besides a second body, I have just added three lenses, all Sigma, 28-70 f2.8, 70-200 f2.8 and 100-300mm f4. A couple of the lenses are heavy, which the DW does not like to carry, so she still uses the 18-55 and 50-200 and is very happy. Before purchasing my own body and lenses, her 50-200 (we shoot with Pentax) was fast becoming my go-to lens. If the 50 side was a little long, I just let my feet zoom

do the work. I would recommend that you shoot a little while and figure what type of photography you are going to do. Then purchase the lenses that best fit your needs. For example, I now have the lenses I need for most of my work, but that doesn't mean I'm done with the toys. I'm looking at some specialty lenses for specific situations. I want (don't need, but want) the Sigma 30mm f1.4 for the WDW dark rides and a fisheye for whatever. If I get these, I know I will find additional uses. IMHO I would determine what type of photography I wish to do then and then move forward. Everyone of us, that have this disease

, is different and have differing requirements.