Randy Leedy has a post on B-Greek where he offers a reading plan he's developed for the Greek New Testament. He writes:

There are two basic plans: a sentence-focus plan that maximizes consistent length of readings (based on word counts) without ending a reading mid-sentence, and a paragraph-focus plan that tolerates greater variation in length for the sake of reading in larger thought units. I have laid out each of those plans over three terms: 1 year, 2 years, and 3 years. There is actually only one list of 365 passages for each plan; the difference is only that the 2- and 3-year schedules list the date for every second and every third day, respectively, for each reading. It is up to the reader then to subdivide each reading into 2 or 3 parts as seems fitting.

The lists (a PDF file) are retreivable via email. Rather than post Randy's email address here, please just head to the post on the B-Greek archives and follow the instructions there. I've just grabbed it myself, it looks interesting. I probably won't use it for the entire GNT, but I will consider using it to direct my next run-through the Paulines in Greek.

Randy is looking for feedback from advanced Greek readers, so if you qualify as one of those and want to evaluate his plan, please check it out and get in contact with him.