My roommate tried that Spartacus workout and said it was crazy hard (and he was in very good shape). I may try it sometime, I'll have to see if I have the correct weights. I only have two dumbbell bars so I may not have enough time to change the weights in between the different sets.
I always recommend HIIT because it's awesome.
6/17 - Meshuggah
6/28 - Iron Maiden - Bergen, Norway
6/29 - Blaze Bayley - Bergen, Norway
7/1 - Iron Maiden - Luxembourg
10/31 - Fleetwood Mac