If you download a lot of files from free file hosting sites like Rapidshare or MEGA, check out JDownloader (http://jdownloader.org/home/index?s=lng_en). Its interface is somewhat ugly, but it makes downloading many files from such sites way easier. It can monitor the clipboard for copied links, and it automatically pops up a window for you to enter a CAPTCHA when it’s necessary. I think for some sites it can even solve the CAPTCHA for you.