Firefox has a lot less overhead and is missing a few of the IE vulnerabilities, but a fully-patched IE is pretty stable. Trick is keeping them fully-patched.
DP still shows as problematic - Norton, PCTools, Trend, and and Defender say there is an issue with a trojan in their scripting, but the DP admins are saying that it's all been taken care of, no worries.
However, you aren't the first guy I've seen who says he picked up a bug over there in the last few days... my advice? Wear a condom. Make sure your Antivirus is active and up-to-date, that you are patched and up to date with your browser (Use Firefox, IMHO), and run a spyware adjunct - active Spysweeper, Spybot, Superantispyware, or Malwarebytes - not just the scanner.