Your issue here is really two issues. You can set up your personal e-mail account by opening the Mail Icon and select Menu>More>New Account and set up a new account. From there you put in the account settings provided by Roadrunner (your ISP) and away you go.
The calendar notifications is another matter. Those are integrated into the phone via a your G-mail account (any Exchange users out there could tell you more about what the Exchange Sync offers in this area I have not used it) but your personal account, which is surely a POP3 account will not have this feature. There might be an additional app to do this but if so I've never seen it.
Something else you should know is that outgoing mail from your phone via the personal account is an entirely different kettle of fish (Verizon dropped their SMTP relay service last September). If you have trouble with this let me know. I figured out a way to "Skip" SMTP traffic off of the Gmail service and make it work

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