1. If you play it back and you didnt record 24pn, it wont look slow motion. if you do, then on playback it will play back in slow motion.
2.24pn is "true" 24 frames. 24p is 29.97, progressive.
3. the upconverted is true. To tell the truth, unless you have a 50' HD TV and up, you really arent going to notice the quality difference between 720p and 1080i. And the camera does not have 1080p.
4. if i were you, i would pitch that a second P2 card is needed, otherwise you wont be able to shoot while it downloads on the computer. (hot swapping as they call it)