What's your present rank? I'm not devoting much time to it right now, but I'm trying to go from 10k -> 5k. (My efforts were re-invigorated when I got the iPad app from Many Faces of Go).
I've hit 3 dan before, but right now I'm probably a weak 2 dan. Life & Death is the key, so hopefully running through a thousand fresh problems will do the trick! If you do the same, you can do a lot better than 5k :)