Dear Kris,
with the intention of creating a pleasant and comfortable place for you, I've tried to create a cozy home where is plenty of warm materials and colors.
The walls are stripped and covered with gypsum board and painted over in white.
The floors are completely replaced. In kitchen are ceramic tiles in beige color, and the rest of the house is covered with decking.
Kitchen actually has an excellent basis. Painted beige or ivory color, will get a great classic look, which is phenomenally fit the rest of the house. I combined gold handles and a black sink, in order to achieve a modern, updated look and even more closer to the kitchen environment. The island is a great idea. That is best achieved connection between people in different parts of a larger space, which is multifunctional and open, like this one. I think you have passed more favorable if you find a good handyman to help make the island.
Dining is a special oasis. You said that you want to play games and have lunch here. This has become a comfortable space. Bench to the window replaced the chairs. Thus it provides a clear view of the lake if no one sitting next to the window. It also receives and more homey look.

I liked the idea of ​​what you want to keep the fireplace. It should smooth the base and put the finishing white. Around the fireplace takes the whole story living room. In the corner of the working area, but the chair, if necessary, turned toward the fireplace. Sofa good solution, because there was no space to organize two separate beds, to sitting six people.

I hope you liked my idea of ​​the project of your house on the lake.
P.S. I apologize to me for my English. :)