There are many examples on houzz of contrasting counters for perimeter and island. For example butcher block on island and stone on perimeter or a solid color on one and something with movement on another. I would only mix two stones if one had movement and one was fairly solid. The stainless on perimeter and something else on island sounds good to me. Here is a pic of stainless counters with what looks like a stone breakfast bar. (I hope I understood your question right). http://houzz.com/photos/3137660

You have a good nice project planned here, with your kitchen now a part of large living space. Here, though, are some cautions and suggestions. Your extra-large peninisula counter and full window wall over the sink seem to be features that you like and want - but they also cause some problems with this plan. If two people are ever in the kitchen, one will be trapped there. And even for one, the peninsula forces an irritating hike around it to the table for serving and clean-up. Table and array of counter stools are uncomfortably close together, creating congestion especially when occupied. And while your back wall may well contain a fridge, wall ovens, pantry and cook-top, it would just barely do so - and leave no other space at all for counter. This, together with your nice bank of windows on the outside wall leave no space at all for upper cabinet dish storage. I agree with Laurie that an island here would be much preferable. I would put the sink and dishwasher on an island, with fewer stools, and some mid-height dish storage - letting gatherings of more than two or three enjoy the table in a conversational arrangement instead of facing away from the room in a row. I would also minimize the window array a bit, and extend the kitchen toward the dining table window a foot or so - and put the wall ovens at this end of the "L" - with no side wall at the left. This would distribute your countertop space more happily among your work stations, allow for some upper cabinet storage, and make the kitchen feel more part of the nice big room, instead of separated from it by the peninsula. Perhaps a careful in-person visit with a kitchen designer would be wise before you build this fun new addition. Good luck! Mark

Oops! Your trim looks grayish blue to me. Sorry, didn't see it is charcoal until afterwards...well in that case, I think I would still do gable and wrought iron as mentioned but then try a bright yellow, like SW's BEESWAX is paint color. Are you in the islands? Sorta has "that look". Envy : )

This is where the kitchen is going to be. Where my husband is will be counter top at that height. with a big wide counter top to sit under. on the back wall double door fridge a metre gap. 2 wall ovens then a sliding door where the ladder is. A scullery. Behind my husband to the side of him a sink the cooker then space. Where the big flat plank is on the ground (ish) will be the movable island. you can see a taster of the stone wall which will be on both sides of the entrance hallway, the flooring will look very similar to this http://carpetdiscounters.co.nz/product.aspx?product_id=441 . You may note the steel next to my husband on that side. it also needs to be treated. Thank you very much