I too have AVG7.5 but from now on you need to buy and upgrade to AVG 8.0 and so
its not free anymore,unless you stick to AVG7.5(which will not get the updated virus defs)
Kapersky again is not free.
A-squared is again only free for 30 days.
I am gonna give Avast 4.7 a try coz it appears free for home use atleast.
Otherwise its going to be Antivir + Zonealarm + some anti spyware


I like good 'views' because they have no 'strings' attached..