These two are both very similar, and with the nifty 50mm you will have a nice package. Might want to get a cheap kit lens like the 18-55 or nicer 18-135mm as the 50mm is going to be a little tight indoors for general use on a cropped sensor camera. If you have friends or family with one of these two brands then you could share equipment if you get the same kind. What is going to be more important for product photos is lighting. If you don't have the right light then you will not get accurate color no matter how good you camera is. Google DIY light box to get some ideas.
http://strobist.blogspot.com/2006/07/how-to-diy-10-macro-photo-studio.html


