Maggie, the first
nice knife I got was a 240mm Tanaka Blue2 gyuto from James at Knives & Stones (also a vendor here, and also a heckuva great guy). In all honesty, there is 0 I've gained, functionally, from the dozen or so more I've bought - they're nice, and different, but none had anything like the boost over my old crummy Target knives that the Tanaka did. It was easy to sharpen, held an edge well, and could neatly cut everything I needed. All the others have just added fun and enjoyment.
The one thing I did NOT like about that knife was its reactivity - the iron cladding turned orange if you looked at it wrong. Forget "taking care of it", it would be orange by the time I finished cutting a couple of peppers. If you can live with that, it'd be a great knife in 210mm for you. There is a stainless-clad version that won't react like that, but unfortunately it is out of stock at the moment.
http://www.knivesandstones.com/tana...uto-210mm-with-custom-octagonal-ebony-handle/
For another option, my current most-used knife is a Sukenari, and it is fantastic but not a beginner's knife (very hard Blue Super steel, tricky to sharpen). They also have a Ginsanko line, however, and I have no reason to believe the quality is any lower. Ginsanko is a stainless steel, but much nicer than the stainless crummy Target knives are made out of, fine-grained and easy to sharpen. You might like this one.
http://www.knivesandstones.com/sukenari-ginsanko-ginsan-gyuto-210mm/
James sends his knives out with a VERY nice edge. I'd get a 1k/6k combo stone from somewhere (Jon has a very nice one, last I looked), watch lots of videos, and pick a time you have an hour or two to practice, going slowly, maybe with a glass of wine or similar if it helps you relax. I find that stropping on unloaded denim is the quickest, easiest way to deburr, One of those knives, that stone, some videos, and a leg panel of an old pair of jeans will have you wondering how you ever survived with crummy knives.