I don't know what discs you already have, but here goes:
MIC/Interval Max challenge:
MIC warm-up through end of hi/lo segment; then
Interval Max cardio/blasts cycles 1-10.
CTX 10-10-10 warm-up through hi/lo; then
Step Intervals interval segment; then
Power Circuit circuit segment
CTX All Step through end of step segment; then
Step Intervals interval segment; then
10-10-10 hi/lo segment (this really ends things with a bang)
Gauntlet cardio only ("NEXT"-ing through each resistance cycle); THEN
I-Max Extreme, as far as you can go
The Timesaver and Hardcore Extreme discs should be perfect for your single-disker.
HTH -
A-Jock