3rd party anti-spyware suggestions for vista 64bit

Ok I used to use lavasofts Ad-aware under xp and never had a single problem, at this time however they don't have a product for vista 64.

Anyone offer any suggestions for a good anti-spyware product for vista 64?

Just to add, yes I am intending to buy one, at tehg end of the day when it comes down to security I never do half measure.

Also yes I realise thats ironic as i'm using vista, however this machine is on vista 64 and will stay on it so no suggestions of upgrading to xp thanks.