Touch Pro 2 Verizon data always turning on Automatically?

[KHPower]

Im sorry if this has been posted before. i tried searching for my problem and came close but not to the T.

I have a Verizon HTC touch Pro 2 with a unlimited data plan but I have noticed that I have to manually go into my connections tab to turn off the data because it seems like it connects to data automatically way to often. I have my email set to check every 4 hours but it seems every time I look at my phone the data connection is on and I would like to only use the data when needed to save battery life and so forth.

is there any setting or cab like NoData that would help with these automatic data connections and only let the data connection work when I want to browze the web and check my email??

Thanks