Is there any way I can set my mail up to ping or beep or say "you've got mail" when I get new mail?

I use the setting from the yahoo instant messenger to notify me for both IM as well as email.the first page that comes up gives the options for settings, like for playing a sound for mail etc. Under the alerts and sounds is a list, click on the preferences and all the settings are there for both IM and email. You can try out the differnt sounds by clicking the browse and then click apply and ok.