In the Metagenomic Analysis tutorial they used a reduced dataset to speed things up.  I am going to be using Galaxy as part of my hands-on Genomics and Bioinformatics course.  In the lab portion, students (20-30) will be doing their own analyses.  If everyone is trying to do a full dataset on the Windshield Splatter we will never get done with the Megablast.  Is there a simple way, maybe using Galaxy to reduce the size of the 454 data and QV?  Even if I have to make the reduced data sets myself.