Another nod32 user here, have not tried Kasperky yet, but plan to when nod subscription runs out, as it seems like 50/50 between the 2.
Personally i love nod32 because i never notice its running, and i can't say the same for any other AV i've tried.... and its great at doing its job.... unlike mcafee and norton which have failed me more then once in the past.
£23 or so a year is a bargain compared to subscription costs and the crappy bloated software you get from the other companies (minus Kaspersky, yet to test remember).
I tried Nod32 after reading about it here, and i'm recommending it to anyone i know who asks about Anti-Virus, i've yet to recieve a 'help my pc looks up or has a virus' phonecall since suggesting it, so that in itself is a good thing for me.
Do Kaspersky do a Trial?... i'm recently formatted and could test before nod32 goes back on.