Psychic Academy by Katsu Aki
Psychic Academy is a pretty decent completed manga that I've read and I've searched this forum and there aren't any download links so I think i'll post some :).
Basically it's about this guy who finds out he has powers and goes to this school where everyone does and the plot thickens. This manga includes some ecchi,romance,comedy and action.
If you want to find out more about the plot wiki it or just read it!
I've uploaded the first 5 volumes on gigasize which is a pretty decent file share. I'll make sure to add more if you want me to!
Volumes 1-11 in descending order