I've started to become more memory focused now that I really get into my Treo650. One of my largest memory hogs is my calendar. In all, I've got just over 25,000 events, dating back seven years. I need to keep them and it does not bother me that Outlook PST is pretty large. But I don't need more then the last 4-5 months on my Treo.

I use the built in Calendar as it seems to work fine for me. I could not find a snyc setting only to sync the last x-days or x-weeks so that I don't keep all 25,000 events on my treo.

Any suggestions?