www.toronto.com

Just search hotels, downtown. Most of the clubs are in Richmond-Adelaide, John-Peter blocks. There's a Sheraton and a Hilton within a block or two of that district. I had friends stay at the Hilton, IIRC it was close to $200CDN a night, best not to park at the actual hotels as it will run about $30 a day.

Check this site out for club information:

http://www.clubkidsunited.com/clubsmain.html