mmm never heard of quickheal, it appears to be Indian? a bit expensive at $52 but very interesting.
I swear by what a lot of people dont...I always instaall Norton Internet Security 2007, which includes all virus protection, anti spam etc and from the right sources can be bought for as littl as £10 for a year and thats a licence for up to 3 different PC's. I have never ever had a virus attck me with it installed and only experienced 2 viruses on PC's I have had support for out of well over 100 installations and that was because they deactived the guard!
I got it free from download.com, and everybody knows that Indians do loads of stuff best, like curries.