email in android based tablet

[hfaust3]

Just registered and this has probably been discussed but....
Have a Vizio vtb1008 and its an android 2.2 based tablet that, since android is linked to Google required me to create a gmail account.
How do I add another email account that isn't gmail so that Amazon App Store can send downloads to my device? Or is this necessary?
Neither tablet won't allow another email and I don't want Amazon confirmations etc coming to my tablet, only the apps I purchase