There's a lot of hype around .com's and .info's. If I'm not mistaken, the author of the Google Sniper said that his .infos rank as good as .coms. So, you have to test to be sure.
But in visitors' eyes .infos looks worse than .coms. It's because a lot of spam on .info domains.
Go for .coms and .orgs if you need URLs which would attract people.