Long time i have been using a compination of Kaspersky Internet Security 2013 (KIS), Emsisoft A-Squared, Emsisoft Online Armor and the both Spybots (1.6.2 and 2.0) and made with all of them not bad experiances, as each of it have it advantages (and disadvantages which got rid from some of the other) but since the lastest Release of KIS, which caused some trouble, as performance, for me, i removed KIS and only have the rest left.