How do I safely delete all emails on Entourage from my personal computer (but keep them on my network at work)?

A couple of years ago, I connected my work email to Entourage on my personal computer. However, it’s just slowing it down and I no longer have the need to check work email from home.

How do I completely disconnect the account from Entourage, and completely delete all of the emails off of my computer? In other words, I want to clear my personal computer of ALL work email that may have filtered its way in through Entourage. However, I want to go to work tomorrow knowing that they will still be on my network there, on THAT computer.

I’m scared to press “delete” on anything, out of fear that I will lose all of my work emails!! I just want to rid my personal computer of them… Advice?