I left my job but kept my device, but I can't get rid of all the old enterprise settings (password has to be enabled, cant send email because itstill thinks I'm on the BES, etc.) How do I wipe this thing clean and start over????

What provider are you with?

Search on "remove it policy" - some folks here posted how to do it.

Alltel Handheld Software:
http://alltel.com/phones/blackberry/7250.html (In right hand column)
Verizon Handheld Software:
http://vzw.smithmicro.com/blackberry/
Sprint Handheld Software:
Not Sure on this one.