I'm at the gym daily, for a bit over an hour; and in addition, doing some running (training for a marathon).

The one effective way I have found to combat boredom is audiobooks. The amount of 'reading' I get done like this quite amazing. Of course, it's not useful for technical texts, but pop-sci or most fiction can be enjoyed really well this way.

To fight procastination (spelled 'akrasia' here I think), I use good-old discipline/guilt -- I have tought myself to feel bad when not training, and having concrete goals (e.g. a marathon in August) really help as well. Every drop of sweat today will reduce the suffering on marathon day...