possibly too much protection

since i have overdone it with protective programs in the past i thought i would ask a few questions.
i am running windows vista ultimate right now, along with norton internet security and ad-watch live(for real time/virus/firewall). also i do use spybot, malware bytes, spywareblaster, and advanced care for other scans etc.
my set up(after lessening the programs used) was a firewall, antivirus and threatfire. i am just basically wondering if anyone can comment to any degree about adwatch live (it is worth it, computer use, etc).
also was going to ask if anyone has used threat fire 4.6.0.4 beta for 64bit? i am not sure that i care about it being a beta, i realize it would be different for all. however i just was recommended to it in the past, and probably would not have stopped using it if it hadnt taken so long to get a 64bit version.

so i guess, basically... comments on adwatch live and threatfire 64bit, and whats to much protection/the base amount(since i think my computer might have slowed a little, not spyware).

thanks

 

My protection is:
Avira AntiVir (free)
Comodo Personal Firewall (free)
SuperAntiSpyware
MalwareBytes
SpywareBlaster
SpywareGuard
aSquared Free
WinPatrol.

 

i see, can anyone else comment to any extent about adaware adwatch live, or threatfire(64bit beta hopefully)?
and if either of these might be considered better, or even overboard if i run norton internet security(with a side of iobit 360 even, free version, not sure if thats worth much either).
norton has a low resource setup which is nice, i guess i was just questioning if the other programs might be just wasting my cpu or memory.