Hi there, welcome to the club! First of all, get a big SD card, then, download
http://repo.openpandora.org/?page=detail&app=pndmanager-bzar
I assume, that like me then, you will also want to look at the thing and keep it running the whole time.
Download this clock thing (there is also the ):
http://repo.openpandora.org/?page=detail&app=FlipClock
Then, download VLC, music players (I use rockbox, but there really are many, so you should try them all until you found one you really like).
But really... get GOOD headphones (non apple-compatible)... you will meld hearing the good audio quality (which is not so good when charging the Pandora)
More I recommend:
alarmclock (beep! beep!)
Cellwriter (write your letters, get them OCR'ed in realtime!)
sleeptimer (to shutdown automatically
)
znotes (for quicknotes)
PSP-maps (for when you get lost...)
coolreader (the best walkthrough viewer you can get. period.)
and start here:
http://boards.openpandora.org/topic/94-tips-tricks-and-tweaks/
Also... SD cards can be fickle... backup often.
Download everything. Some things are not rated, but boy, they are good! (ps: help us rate!)