I understand that the end of Buddhist Lent is next week. Are there any interesting/colorful ceremonies anywhere here in Bangkok that would be worth seeing?

Don't know about the rest of Thailand... but here up North we have been having a round of festivals at every temple for the last month called Salaakaphat....

see my pix...... http://www.flickr.com/photos/28361002@N07/...57622394030198/