Multiple Internet Explorer for Quality Testing
Most (if not all) of the eskwela.com team members uses either a Macbook/Powerbook/iBook or Ubuntu. They really don’t like using Windows unless it’s really necessary (like developing XackMail) and these guys weally (really) love OSX and Linux.
Yes, you are right. I use Windows XP (which was pre-loaded with the notebook I got, so what?). And don’t you try to belittle me, I love Macs too! Ha! 
Actually, I’m saving for a MacBook Pro (I can also run Ubuntu and Windows here you know). But there are tons of other priorities than that so I leave it the way it is for now. 
One of my job at eskwela.com is quality testing. I use different versions of IE (Internet Explorer) and a very good tool for this is MultipleIEs.
For those who doesn’t know, (yes) you can actually install all versions of IE3, IE4.01, IE5, IE5.5, and IE6 on one machine. It works fine (don’t crash now, please) on my machine together with the new (or old) IE7.
Why don’t you give it a try.
Disclaimer: Use at your own risk. hehehe… 
Good luck!
–aj
