For a week this worked pretty well for me:

Start coding and once you get bored and notice you can't longer keep going, close your IDE and play Mount & Blade Warband on the hardest settings (except for the "only save on exit" option which is the path to madness).

Try to win a tournament with a level 5 (or less) character until you notice you're frustrated enough and can't play any longer, then launch the IDE again and start coding again.

Repeat until you die of exhaustion... Or you win the tournament (probably you will die of exhaustion though).

If you can afford to, I'd suggest getting a dedicated work machine. Any cheap, probably used, 1-2 year old laptop will be enough for programming, even games, if you are not planning on developing the next CryEngine

Be wary of the requirements of your dev tools. I wanted to develop for WP8 over my vacation, but you need 64 bit W8, and I only had 32 bit W8 on my laptop.

While I am totally disgusted by the W8 thing (the only thing dev tools SHOULD require is a text editor and a compiler, these should not have platform restrictions), I agree with the sentiment of be wary of the requirements of your dev tools.

But I'm more on the hardware side here: a proper keyboard, mouse, large screen...