What type of steels to you plan to sharpen? I would recommend diamond hones if you like high end super steels otherwise waterstones are the way to go.
The King brand you have found is well respected but also the most basic of waterstone. They are slower cutting and often have troubles grinding newer stainless steels. In their place I would recommend the Arashiyama 1k and 6k stones. These are faster cutting higher quality stones that put a great edge on many types of cutting tools. Beyond that you have many types of stones and quality levels most of which are usually at a good price.
Tell us a bit about the steels and knives you plan to sharpen and also what features you would prefer in a stone. Some you don't have to soak some need a soaking. Some are muddy and soft, some are hard like granite.