Applescript - if you don't know how to do it, post here;
http://bbs.applescript.net/cgi-bin/webbbs_config.pl
The people there will help.
As for the weather, put Meterologist in your menu bar (free)
http://www.versiontracker.com/dyn/moreinfo/macosx/16142
You can set it to just display the current temp, (40º) and click on that for a drop down of all the forcast, extended forcast and for other cities you can have listed there.
You could also put all the sites you visit in a folder and on the Safari Bookmarks Bar, then open in tabs, just click it once every half hour, the folder opens, go down to Open in Tabs and all pages will refresh. If you're really lazy, this will be too much to do
