1) Is it bad to run AVG, Spybot, Superantispyware, & Adaware all at once?
2) does anyone still use norton?

I would drop the AdAware. Newest version isn't as good as past versions.
If by AVG you mean the antivirus program, yes, it can run with the others. If you mean AVG Anti-spy then it is no longer available as a stand alone program but comes with AVG8 Anti-virus.

It is a good question.
On mine, and MANY other , PC's nowadays the on-line ,
real-time protection "sub-components" of AVG8/SpyBot/teaTimer/ etc
combine to cause a 5 or 10 second lag
when a file or folder is opened.
But no-one gives decent advice.
Typically they say "it's up to you".

With Spybot, you can TURN OFF that TeaTimer, which often times is more trouble than it is worth because it is known to sometimes interfere with fixes needed, by going to Spybot, Advanced Mode (up at the top of the program) Then at the bottom choosing Tools, Resident. Take the checkmark OUT of TeaTimer then close the program.
Judy

Good decent advice. Thanks. Dun it.
Dunno yet if it'll normalise file/folder opening. I'll see how it goes.
Now, I AM grateful already, but can I turn-off anyfink else please ?
Someone said spyblaster & avg8 didn't cohabit amicably !

Spywareblaster doesn't run in the background at all so it shouldn't conflict with anything really. I have used that program with three different antivirus programs, including AVG, over the years and have not had a single problem with it conflicting with any of them.