your still leaving yourself open, hijack really only reads procceses and deals with highjackers. yes if your infected hijack is worthwhile. pestpatrol is junk and spysweeper isnt much better.
as of now this week you need 3 cleaners your AV, spybot and a good reg cleaner i like regsupreme pro. you need 2 blockers again free spywareblaster and spywareguard.
with zonealarm for a firewall and admuncher for pop-ups
what i have mentioned makes for a bullet...