I've searched the forums, but nothing seems to answer my question specifically. I'm giving my computer to my mother and I wanted to permanently wipe all my data/documents for two reasons: 1. To allow her the maximum amount of space and 2. To clear up any embarrassing emails... etc. which I know I have. So, I diligently went in and erased all my mail from "Mail". I went into Users/MyName/Library -etc and found anything mail related and deleted that (as far as I could tell I was erasing all my folders, in box, out box, downloaded files etc.) I also hit "empty trash" after I deleted stuff. However, when I did a search using "spotlight" it was showing up old emails I thought I had permanently deleted. Eek! I found this by accident when I was teaching my mother about "spotlight". My mother's not computer savvy enough to even remember how to use spotlight... but nevertheless I don't want my stuff on there. Other than doing a clean swipe of my hard drive and reinstalling the operating system. (i had OS X 10.3.9) and a friend updated me to OS X 10.4 - yes for free... naughty me... I don't feel guilty coz I did buy a whole new computer coz my 3 1/2 year old couldn't do what I wanted anymore - ie burn dvds, video record, wifi, more than 40GB HD... so they made a lot of money out of me! Anyway... I also don't really want to wipe the applications just in case something happens to my new computer. I'd like to be able to use the old one as a back up. So where oh where is all the mail data stored so that I can permanently delete it? And is there anything else I should do to permanently delete stuff. There is only about 14GB of free space, and I suspect that it is filled with stuff I haven't deleted properly (not just applications). Any advice? Thanks!!! PS: Yes, I have backed-up my old HD.