Having looked around a bit, I found this:
Naniwa Specialty Stone - Super Stone Full Set 1000/5000/8000/12000 - SLIQHAQ (Again, sorry for it being in Swedish).

Four stones -- 1k/5k/8k/12k -- for the equivalent of about $240.

That might be a little much, since I probably won't need the 1k or 5k for a while, so maybe the 8k, 12k, and a CrOx stick. How's that sound? That should keep my blade refreshed and shave-ready for quite some time, right?