In SP1 I need the USB 2.0 support. But we found that we couldn't chkdsk USB 2.0 drives until SP2.
For us, we can't do without SP2.
-> In most cases the issues I see are spyware and pest related. Microsoft did not expect that on the machines and we saw a lot of complaints that were not due to Microsoft.
If your machine is not spic and span (free of pests) then you will have issues.
I am running XP Home Edition with IE 6.0 and have not added either the SP1 or SP2. I attempted the SP1 when it came out and started having problems with my computer and ultimately uninstalled it and the problems cleared up. However, I am willing to try again I will just set a restore point for sure. My question is do I need the SP2 as well? Or is it more for IT people?
Also, does one of those versions not come with a firewall? I currently use a purchased version of ZoneAlarm and am pleased. If Microsoft does come with the firewall will I have the option of disabling it? Or is it superior to ZA?