Hi! Besides Arduino programming, I'm also an active geocacher (geocaching.com), so I was thinking I could use my arduino experience to make a digital logbook.
I'm thinking about using a PS2 keyboard (i'ts big, but I'll handle that problem), an LCD and maybe an SD card for storage.
Is it possible to turn on the arduino, write some sentences, and it will be stored on and SD card or similar, and next time it's tuned on, you can add a new sentence (a .txt file or simular). I have no experience with SD cards and arduinos so I need your help. :P