I use:
Ad Adware SE Personal
avast!
Spybot Search and Destroy
SUPERAntiSpyware
Spyware Blaster

And to clean my registries:
CCLeaner
Abexo

What do you use and what do you think are the best?

In the past I have tried AntiVir, MacAffe and Norton and did not like too much also AVG which is crap

My computer (Inspiron 5100 running XP) boots very slowly then on occassion just stalls …moving the mouse works fine but clicking on anything results in no action till often a minute later … then it seems fine again for a bit … looking at the task manager, the cpu is only 3% utilized so it’s not like there is an app hogging the machine. I have run ccleaner and abexo and ad-aware and they have not fixed the issue …. anyone with any sugeestions?