My advice is try it and see if it meets your needs or not.

mojoPortal is designed mainly for business web sites, it was not designed for specific niche purposes such as magazines or newspapers but it still may be suitable for your purposes, you must decide that for yourself. You may need to develop custom features to meet your specific needs.

http://www.mojoportal.com/about.aspx

Hope it helps,

Joe

If you have the ability to run on LAMP, you might give eZ Publish a try. They have a lot of magazine and newspaper sites (Car and Driver, Elle, Wall Street Journal Asia), and were a leading contender in our selection process until we found mojoPortal.