I am also one of those few quite happy with IE. Haven't installed IE7 yet.
Actually, I am using tabbed browsing and many of those Firefox features for quite some time...
Have been using MyIE, now Maxthon Browser (http://www.maxthon.com/) which needs IE to
be installed.

Tried Mozilla and Firefox in the past, but that caused a lot of trouble with some pages using
lot's of Java and/or Flash.

Yesterday's the past, tomorrow's the future, but today is a gift. That's why it's called the present.