In addition to the NOAA site I also like this site for its computer models and tracking maps.
http://www.wunderground.com/tropical/
Also just for seeing the cloud cover and whatnot I run Earthdesk on my secondary monitor.
http://www.xericdesign.com/earthdesk.php
I also run this app on my iPhone.
http://itunes.apple.com/us/app/hurri...291430598?mt=8