Third vote for Firefox. If you're on broadband I can even hook you up with a sweet speed tweak someone on another forum posted. Actually, here it is for the rest of you.
Here's something for broadband people that will really speed Firefox up:
1. Type "about:config" into the address bar and hit return. Scroll down and look for the following entries:
network.http.pipelining
network.http.proxy.pipelining
network.http.pipelining.maxrequests
Normally the browser will make one request to a web page at a time. When you enable pipelining it will make several at once, which really speeds up page loading.
2. Alter the entries as follows:
Set "network.http.pipelining" to "true"
Set "network.http.proxy.pipelining" to "true"
Set "network.http.pipelining.maxrequests" to some number like 30. This means it will make 30 requests at once.
3. Lastly right-click anywhere and select New-> Integer. Name it "nglayout.initialpaint.delay" and set its value to "0". This value is the amount of time the browser waits before it acts on information it recieves.
If you're using a broadband connection you'll notice pages load faster especially if you are reloading a bunch of tabs at once. Well, I did.
If you want to tweak other settings but don't know what they do go to:
http://kb.mozillazine.org/index.phtml?title=Firefox_:_FAQs_:_About:config_Entries
or you can google "about:config firefox" and get some results or just click this link for the Google search results:
http://www.google.com/search?hl=en&q=about:config+firefox&btnG=Google+Search