Spyware Scanner

I currently run Norton's AV 2009 which (it says) includes spyware protection/removal features. I also run Spyware Blaster and the PCTools (free) firewall. I also have an old version of the scanner Ad-Aware on my laptop with Windows XP. I see that this is no longer a recommended product so...do I need another scanner or is the combination of Blaster and Nortons adequate protection for spyware. Also, am I gaining anything by going to Norton's 2010 when my subscription runs out?

Thanks as always,

Mike