Ok guys, It's time I get a zoom lens, something that has the uppers in the 200-300 range. Now, I am mostly using it for daytime work, so I am OK with a cheapie one (f.4 - 5.6) but WHICH one? I'd like to also be able to do Macro if that's available, but all the choices are a little confusing. All I use now is a NIkon 50mm 1.8 and the standard 18-55 (Only when I need a wide lens), so I am scared to go outside of the Nikon name, but if people have some good experiences I can be swayed! What say you, fellow enthusiast?