Good evening!
I'm a FORMER windows mobile user and just bought a brand spanking new Curve 8330 from Sprint! Anything special I should know? I been reading the forums and have picked up a few ideas, but is there something I can't be without with my new curve? Thanks in advance!

Insurance for starters. Also, make sure you expose yourself to the content in BBFAQ where the link is located on the top.

Impossible to answer. What's a "must have" for one 8330 owner may not be for another. Reading around is your best bet for ideas.

If you're prone to losing/breaking your devices, insurance may be a good idea.

If you're OCD about your device's appearance, something like the Invisible Shield or BSE may be a good idea. A screen protector is a good idea regardless.

If you like cases, there are many options out there.

If you like Bluetooth headsets, there are many options out there.

It's all subjective preference.