GOG.com is having a sale for the weekend of all the recent Telltale games except for the Walking Dead and Jurassic Park. The games are all 80% off so if you have been eyeing the Sam & Max Series or the retelling of Monkey Island this is a perfect chance to pick it up. And remember all gog.com games are DRM-free.
http://www.gog.com/en/promo/telltale_weekend_promo_9_11_12/
Also they still have the interplay sale going on for about another week: http://www.gog.com/en/promo/interplay_price_change_promo_09_11_12
http://www.gog.com/en/promo/telltale_weekend_promo_9_11_12/
Also they still have the interplay sale going on for about another week: http://www.gog.com/en/promo/interplay_price_change_promo_09_11_12