Tech help

I use Microsoft Outlook for E-mail. I originally started using it because I like having the contacts, tasks, calendar and other stuff all in the same program. Also, I might have been drunk when I made the decision.

Now I'm having problems. As near as I can tell, the database engine that Outlook runs on was designed right about the time that the Shah of Iran was overthrown. Now, it's old and cranky and doesn't really want to deal with my six years of e-mail crap. It's getting slower and slower, to the point where at some point I won't be able to read or send any E-mail before lunchtime.

So, does anyone have any suggestions? I'd like something with the bells and whistles of Outlook, but better speed.