I highly recommend to start out with the Spyderco 204 Sharpmaker. But like I tell everyone I recommend it to I also think to make it a complete kit you should buy the other stones/rods you can by extra for it like the Diamond rods, The Ultra-Fine stones and the CBN stones too.
Also before you even so much as try it even on a cheap kitchen knife I encourage you to watch the instructional video at least 2 to 3 complete times before even attempting to use it. I'm not sure if the new 204 Sharpmakers still come with the instruction booklets but I do know that they come with the videos. If they do still come with the instruction booklet I also recommend you study that as well>> or at least the highlights of it.
But the video is very comprehensive and you should learn the basics in 2 to 3 viewings. The more you know about the tool the less mistakes you'll make. And don't start out with one of your $100+ Spyders >> learn to use it on everyday kitchen and other types of knives first. I would sharpen at least 2 to 3 cheap knives before I would even touch a high dollar blade.