I would highly suggest for a 3 month old a puppy kindergarten class the includes both socialization and manners type training. ie coming when called amid distraction of other puppies etc.
also the biggest obstacle in training basset imho is impulse control so exercises that emphysizes impulse control at an early age are always good
such as teaching bite inhibition
Crate Games for Self-Control & Motivation DVD
Guidelines for Teaching Self Control
scent games
and if you have not already done so check out the tracking articles on this site
Craig Green's Tracking Articles
also the biggest obstacle in training basset imho is impulse control so exercises that emphysizes impulse control at an early age are always good
such as teaching bite inhibition
Crate Games for Self-Control & Motivation DVD
Guidelines for Teaching Self Control
scent games
and if you have not already done so check out the tracking articles on this site
Craig Green's Tracking Articles