This entire thread makes my head hurt.
OP, first you said no gaming, then you asked if the MBP would be ok for games. For some it will be fine. Just keep in mind that the 13" only has integrated graphics, so if you're playing graphic-intensive games you might notice some slowdown. How long your battery will last completely depends on what you're doing. If you're not running anything but you leave the computer open it will last for a while...but in that case, you might as well just close the lid and let it sleep.