+1 for a Keurig system.
We've had ours for about two years now. I was really skeptical at first but I have to say I LOVE it now. No more wasted coffee, every cup is fresh and I find that you can get a lot more varieties of coffee from Keurig vs the other coffee systems.
Our machine is just the basic model (will probably get a more fancy version if this one ever dies . . . more cup size options):
You can get basic flavours in various stores around the city but I found the best place to get the coffee is right from their
website. Tons of flavours, they also have great seasonal flavours (I'm enjoying a Pumpkin Spice right now). They also have some decaf coffees that are water processed instead of chemically processed. The customer service is also top notch, they once sent us the wrong 5 pack and when I called they not only apologized but told us to keep the wrong one they sent and gave us a coupon to order two free 5 packs shipping included. The other nice thing about ordering from the website is that you earn points that you can use towards free coffees or discounts off of machines.
Some of my favourites: Pumpkin Spice, Dark Magic (and Dark Magic Decaf, my everyday coffees), Macadamia Nut, Rainforest Nut, Spiced Mayan Chocolate, Wild Mountain Blueberry, German Chocolate Cake, Cinnamon Pastry, Kahlúa, Pecan Praline . . .
Edit: Plus you can use your own coffee too, you just need the filter insert