Do you know anything about the Shurley Method of Grammar? Is that any good? I hardly know because we used Voyages in Englsh last year, and my mother found a ViE 8th grade edition in a stash my father has owned since he was a boy! I kept it of course, but I think I need something more geared towards 6th grade.
I gots a VIE 6th grade book. ;o)
I used to teach Shurley. I do not recommend it for only one or two students. For a classroom, it's great. It's fun, engaging, on topic and age appropriate, and it covers all the learning styles.
I am using a program (I just got home form a seminar on it) called Spell to Write and Read. While it is not specifically a creative writing/grammar program, there is a program that meshes very well with this at about the third grade and up called IEW (Institute for Excellence in Writing). Writing Strands is also good for middle school ages.