International or Local website for an Amazon Affiliate niche site?

Hello all, I'm a newbie in IM, just read a lot of great threads here and I want to finally take action in the Amazon Affiliate niche. . So I am plaing to start a review site and put affiliate links in it, but I have one doubt that might be look stupid by many of you I'm from Italy, so of course it would be better to create an italian site as It would be easier for me to manage, but I think this would radically drop down my possibilities to ea the same money I would ea with an INTERNATIONAL (English) site.. am I right? . What should I do? Go for an English site instead of an Italian one? . Could you guys suggest me a good theme for Review sites on wordpress / good plugins ? Is godaddy a good choice for domain? . thank u guys and I hope you all ea good !