NHR: OK seriously: How do I get around this stupid software?

After taking it off for a month, they smacked WebSense back on our computers at work. Now I can't read my Yahoo mail again. This seriously impairs my ability to do the blog.

Techies, HOW do I get around this stupid POS software? Someone said I need to buy a router? No one in my office is technical at all and they won't notice if I make modifications ... this is all being imposed by a corporate office over 1000 miles away.

And no, using a proxy won't work, they have blocked all the proxy servers and anonymous surfing services as well.