Timestamps VS Date/Time Types

Hi, I'm getting a bit confused about what date types to use in my applications and MySQL db. I have used timestamps and I know how to format them, convert them and compare them etc but now I am about to build a calender type script and I'm not sure what to use. For example, if I insert a load of calender appointments into the table, how would I sleect all the events in a certain month (if the dates were timestamps) ? What are the advantages of timestamps over other date//time fileds and vice versa? Thanks for any help, Cheers, Jord