Possibly selling iPad1... need some advice

[SaMaster14]

Well,

I have an offer to sell my iPad1 (32GB + 3G) for $500 to a friend. Definitely a good deal!

But, I need some advice.
How do I completely wipe my Ipad1 so that it disconnects from my credit card and all my passwords, etc? Do I just restore it?
AND MAINLY, after this is done, will the backup from my Ipad save so that I can use it on my iPad2? I want to make sure that my backup is kept so that my iPad2 has exactly what my iPad1 has on it now.

And finally, do I take the AT&T SIM card out and keep that, or how do i transfer that so it disconnects from my data plan/account?

THANKS!

 

[Davichi]

They have refurbished iPad 1 for as low as 350 dollars.
32GB with 3G comes with full warranty with new battery.... hmmm

559 dollars. Better deal. 500 dollars is too high.

 

[STEVESKI07]

Backup your iPad in iTunes
Remove SIM card
Restore in iTunes as new device