Security Changes to my PC

Now I need opinions here on what to leave on and what to remove. Previously my PC had the following security software:

NOD32
ZA Pro 6 FW
Spybot S&D
Adaware SE Pro 1.06
MS Antispyware
a2 Free Edition

What I've recently done is bought online Ewido. Yes I've heard some very good feedback on this product so decided to give it a go and see how I go.

Now re the above, I want to keep NOD32 and ZA Pro 6 firewall and also I want to keep my Ewido, but with the rest above what should I remove and keep. I dont want to have too much security software on my PC as it could make matters worse than better.

Help would be apprecaited.

 

id get rid of ms antispyware and either spybot or ad-aware; your choice. a-squared and the remaining antispyware app can be kept for backup on-demand scans.