I just got the CMD102P IV and I'm loving it. However I'm in the unique position of having a little more money to burn and I'm thinking of adding a cabinet, and would like some thoughts. I'll be keeping it MarkBass, but would like to hear some reasons for single speaker cabs vs. 2 or 4 speakers, Traveller models vs. the newer MBR58 models, etc. All thought are welcome.