Affiliate Marketing Secrets

http://www.amazon.com/Sigma-70-200mm-Ape…
I’ve been drooling over this lens for a while, and my dad said he’d buy it for me for birthday/Christmas.. but I don’t know.. My dads always tight on money and A. I don’t know if I want him spending that much for me even though he’s willing, B. I don’t want to get such an expensive lens only to be disappointed, and C. I don’t know if that lens is what I need to improve my photography, I don’t KNOW what I need to improve… I’m not sure what my photography niche is yet, but I think I want to get into photojournalism and I was told the F2.8 would help.
If you want to take a look at what I shoot to see how I could improve check out www.jdipierro.co.nr or www.jdipierro.deviantart.com (I put a lot more on Deviantart to get feedback, .co.nr is my portfolio for potential clients)

ok so my friend’s birthday is in less than a week, and she really wanted some spizikes but the ones she wanted were like sold out. Is there anyway i can get it for her somewhere or like on some site? Her shoe size is 5.5 in guys/youth and 7 in women’s. Thanks.
http://www.finishline.com/store/catalog/product.jsp?productId=prod654921&NIKE=&sourceid=affiliate&cid=k232270&lid=j5617196k232270