Delete Old Computers?

[dffe]

I was wondering if it is possible with a store procedure or something to delete computers LanSweeper havent heard from in X days?

Currently am I doing this manually from the Report Viewer or what it is called.. but this isnt a good solution in the long run as I would like it automated... any suggestions?

[Hemoco]

should be something like

delete from tblcomputers where lastseen < getdate()-60

(not checked for syntax errors)