Hello again and thanks for the info on my previous question of Nikon D3000 VS Canon XSi. I've decided to get the Nikon D3000 with 18-55 mm lens so I can learn the ropes for a couple of years. Now my question is for a good Telephoto Zoom lens with some macro capability just in case. I found a Sigma lens on B&H: the Sigma 70-300 mm. f/4-5.6 DG Macro Autofocus AF-D Lens. I've read the reviews and so far it seems like a very good lens- I saw similar things on Amazon where people praised it. I know and understand the things I see repeated so many times it pisses me off by now:
A) You get what you pay for. (Not necessarily true IMO but that's another story, not in the mood for ranting about it)
B) First party is always superior.
C) Do not buy third party unless you're in absolute necessity. ( -_- )
However, I've made up my mind. My belief from experience with a Vivitar V3800N film SLR (yes I owned a Vivitar) is that any lens will do as long as you understand it and practice with it and understand its intricacies so you can work with them to the best of your ability. That is my stand. But I digress- returning to subject: if you have used them, are you happy with the results? I've seen pictures taken with this lens and they seem very good but just in case.
And please, PLEASE, don't answer things like OH MAI GADZ BUY FIRST PARTY LENSES BECAUSE INSERT BRAND HERE SUCKS because that is not the question. I'm asking if a Sigma lens has worked for people. Comparing it to Nikon or Canon lenses is another subject entirely- and not the thing I'm looking for. Thank you! 
 Nikon D3000 Kit with AF S DX 18 55mm Lens 102 Megap  US $405.00
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 Nikon AF S Nikkor 300mm f 4D ED IF Lens US $620.00
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 Nikon AF S 70 300 70 300mm VR Lens US $441.50
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