What inflatable kayak would you recommend...
What inflatable kayak would you recommend for a 6'3" 230 lb man new to white water kayaking?
Do IKs come with foot braces and thigh straps?
This would be a good boat for you (Aire Lynx 1). It is a little expensive, but it's very well made. Other boats will either be lighter and less durable, or heavier and less maneuverable. The only consideration is that you may want a tandem if you want to carry a lot of gear or sometimes paddle with another person. The boat doesn't come with thigh straps or foot braces, but I recommend both. It's easy to add the foot pegs, it already has reinforcements and spots marked for the bolts.
Yes, I agree with swingle12458599. When I was new to the sport, I paddled an Aire Lynx II (a tandem) with thigh straps and foot braces. I felt invincible running rapids, but it wouldn't eddy turn or ferry very well. Just remember though, that you'll need to keep running bigger water to keep up the thrill, or move to a more nimble boat for more river playing, however your taste and skill progression dictates. If moving to a more nimble boat, I recommend the Force XL. If you were a bit smaller, I'd recommend the Innova Safari. Have fun!