What is the best Computer Security software.  Looking for something
that includes:  anti-virus, firewall, spyware, spam filter, stop pop
ups, worms etc.  Found Symantec to be useless and after sales service
extremely poor

the anti virus that i am using is Symantec. I found it is extemely
good in finding the viruses. I am running a cyber cafe. the first
thing i do in the morning when i open the cyber cafe, it to download
the latest viruses definitons from symantec web site daily. Through
this way my systems are safe from all viruses. but one thing is for
spyware, you can use Spybot

If it really needs to be an all in one solution, you could go with McAfee. 
http://us.mcafee.com/
They offer all that you are looking for. I don't know off hand of any
other non-enterprise level (read: extereamly expensive) package. You
can get the same protection with a group of free applications that all
run fine together.

Anti-virus/worms:
http://free.grisoft.com/freeweb.php/doc/2/

Firewall:
http://www.zonelabs.com/store/content/company/products/znalm/comparison.jsp

Pop ups:
http://www.mozilla.org/products/
This will replace Internet Explorer as your web browser.

Spyware:
http://www.lavasoft.com/software/adaware/

Spam:
If you use a web-based mail service like yahoo or hotmail, you'll need
to rely on them to take care of spam (yahoo is very good at this). If
you use Outlook now, consider Thunderbird.
http://www.mozilla.org/products/

I have used McAfee VirusScan for a very long time, years in fact and
found it satisfactory and (knock on wood!) have never gotten a virus. 
In addition I have used their firewall, spam killer, anti-spyware and
privacy software.  Now I am considering the web security suite.  The
updates are automatic whenever changes are necessary (I use DSL, hubby
uses WI-FI + dialup). I like their products very much and find them
easy to use and not too intrusive.

My suggestions are not a suite of an all in one solution:

Kerio Personal Firewall:(freeware)
http://www.kerio.com/kpf_home.html

Avast! Antivirus: (Freeware)
http://www.avast.com/eng/avast_4_home.html

Resident AntiSpyware:
PestPatrol (shareware)
www.pestpatrol.com

Spamfilter:
K9 (freeware)
Read carefully the page and the guides.
http://www.keir.net/k9.html

Antipopups,etc.:
Maxthon: (freeware)
If you like the IE browser engine use this browser.
"Popup ads, Flash ads, Floating ads, Image ads... Get enough with all
these annoying ads? Here is the solution: AD Hunter. AD Hunter
consists of several neat functions to block all kind of ads. You can
use the "Auto Filter" to block popup ads or setup a "Filter List" for
more accurate and customized blocking."
http://www.maxthon.com/en/features.htm
http://www.maxthon.com/en/download.htm

Or try Firefox if you do not want to use the IE engine:
http://www.mozilla.org/products/firefox/


I hope this "suite" do its job in your computer.

i use an hibryd anti-virus made in my country . He includes protection
for viruses,spyware,worms,a firewall protection and he had some
plug-in's for pop-up's , but the plug-in's must be dowloaded after tou
install the program.The name of the anti-virus is BIT DEFENDER (try
the latest version..i use v7.0).
Enjoy'it !!!