Leaking sun roof

Hi after reading many many posts on leaking sunroofs I have become very concerned about my 1997 Disco, Basically the sun roof's DONT leak, Is this something to worry about, I am hoping with the heavy rain today I may get a dribble or two but nothing as yet :-( .
I also have noticed that I have no oil leaks, I am tempted to sell the junk and buy a "proper" Disco, Any suggestions would be gratefully accepted(opened myself up for abuse there havent I) lol,

Sean

Well i reckon you have the heavy rain today ! To test them again.