The free (with $15 shipping) Senseo machine offer has made its rounds many times. If you haven't registered to try and take advantage of it, I highly recommend giving it a shot. I was lucky enough to get one about two years ago, and I've got to tell you – I seriously heart my Senseo! I'd go out and buy a new one in a heartbeat if it ever broke down.
If you already have a Senseo, there's a printable $1.50/1 Select Senseo pods coupon available now. It's valid on any European-style blend or the Origin blends (Brazil, Sumatra, Kenya, and Colombia). I usually buy the Dark Roast, but I'm dying to try the new Cafe Noir! My good friend Shaina highly recommends the Sumatra blend.