Can someone tell me how to check for apps running in the background and how to turn off so my battery life can last longer and not get warm
Home: Menu; Settings; Applications; Manage Applications; Running
Be careful and don't try to stop "stuff" that your phone needs to run. Some stuff just turns itself right back on though
Although android system manages running app's quite well, there are a few programs to manually kill em. Advanced Task killer, in the market (free) works very well.
Too bad "task killers" isn't censored like the word "root" on these forums as they do even more harm than good. Most of what you see has very little impact on the battery and constantly killing services that will just start back is going to get you nowhere. Adjusting individual app settings is much more effective.