[mulhiny]

Don't stress the Apps that run on their own. That's just the way Android works and they aren't hurting anything. You can kill the tasks all you'd like, but they will restart. Task killers are an unneeded waste. Same with battery apps. Just limit the amount of crap that auto updates and, as suggested, turn off any radios you're not using.

The best way to save battery IMO is to root and use a custom kernel. Using SetCPU set a min/max profile and then set a screen off profile.