TwoDogs - If that was the answer, where is the question? Puzzled!
I also use Netscape and IE5, but have Opera installed on (yes) a smaller, older, slower machine. What you didn't mention is that because Opera is much smaller, the code executes faster, so it actually runs faster than the other two bloatware programmes. Also, you can simultaneously browse more than one URL without it opening up another (complete) copy of itself - so it much kinder to memory/disk challenged machines.
Gets my vote - I use it on my travelling sub-notebook.
------------------
Feline
(I Sit, I Watch, I Smile)