I like to make a animation to where the camera circles the character, so its like you are looking at the figure as it rotates. (ex. a balerinea globe) How can I do that?

Using the main camera: Go to frame 1. Set the camera to whatever starting point you want. Go to the last frame. Set the "yOrbit" parameter of the main camera to Starting Value + 360. (If it was zero to begin with, you might need to use 359 as the end point, to be sure you get actual motion; I think Poser might treat 360 as just still 0.)

No, a value of 360 works.

The Point At command works well with cameras, also, if you're using an eccentric orbit.

Please note. If you wanted to repeat the camera roration, then do not copy and paste the camera motion (0-360 and 0-360), but type in 720 degrees at the end frame (0-720). If you copy and paste Poser tries to jump from 360 to zero in reverse, instead of moving to 361.

whats a good frame rate, and how many frames should I use for the smooth animation?

15 is the minimum I think. Depends what you are going to be doing with the final animation. I do mine at 25 FPS because they are intended for PAL television systems. If it is for NTSC television systems then 30 FPS. For the web 15 should be OK, but I have never done it that low, so I can't be sure. At fifteen frames a second I would guess about 45 frames should look OK for a full revolution, but do a test render in cartoon mode or something and see what the movement looks like.