The upcoming builds of WebKit/Safari are really realy fast. The unoptimized WebKit is often twice as fast as the current standard Safari in page load times. And Safari is supposed to be the fastest desktop browser out there!?
Whenever the new WebKit code gets pushed into Safari (soon?), you’ll notice these significant speed increases and possibly even more after the code is optimized. Download the latest WebKit here, compiled for both Mac and even PC to get a preview or check the article for more results.
Oh and Firefox users (like myself) should also see similar speed improvements in coming versions.