I was looking into AVG...it's free...but how good is it? ... A dude from Miami suggested it when I asked him a couple of weeks ago...he's an IT guy. I was wondering about bit defender, Vibre...and a couple of others though.
AVG works great. (Free)
Did you check the Cnet reviews?
Cnet is the only place who can recommend a better (free) one than AVG.
If you have to spend $$ on something, buy a good registry mechanic program.
You will like AVG better than Norton....and the price fits in your budget!