This has a built-in download manager. At the top of the Hotlist (like the Explorer Bar in IE) you will have several buttons: Bookmarks, Mail, Contacts, History, Transfers, etc.
By clicking on the Transfers button you get a list of your recent transfers with From: To: Size and Transferred data. To resume a broken download just click on the stop and resume buttons to continue where the connection broke off. I have only had to use it once, and it worked fine.
Opera also has built-in email, popup stopper, and spam filter.