I'm using a new browser, Mozilla's Firefox (currently in its last test version before a full release), which Slate wrote about here. The installation was quite easy, and so far, the browser is fast, sports a clean interface, and best of all, it's seemingly more secure. Lately, hackers have been exploiting an unpatchable defect in Internet Explorer by infecting web sites with viruses that plant malicious programs, including ones that record your keystrokes, in effect swiping your passwords and credit card info without you noticing. Unlike the uninformed paranoia that surrounded Gmail, this is a clear and present danger, the worst security breach this guy has seen, in fact.
Experts recommend that you avoid IE until Microsoft gets its act together. So I'd switch to Firefox or Opera, or Safari if you use Macs.