Hi Experts, I'm new to Android. MOTO RAZR is my first... i've been reading about app / task killers and wanted to know what you guys think? im looking to increase my battery life (i already have Juice Defender, mostly to manage my data connection). is the stock "task manager" good enough? if so what are some apps that i should set to the "auto-end list"? if you need more info, let me know. thanks in advance!!