Hi,
Without an actual Arduino, not much will work except Verifying (Compiling) programs (sketches) in the Arduino PC Software (IDE).
No Serial Monitor stuff will work, because it is listening for Arduino.
If you've done PIC stuff you should have no problem with Arduino and you'll find a LOT of interesting ideas and projects, and lots of Libraries of useful code you can utilize easily without managing Linkers and all that...
Need Hardware!
Regards, Terry King ..On the Red Sea at KAUST.edu.sa
terry@terryking.us