Hi and welcome!
Most dealers (Seattle included) have quite a few cars available right away. Go and take a look!
As for silver - it's not my favorite car color, but silver/silver is what mine was when I got it. And yes, color is the least important factor and the easiest to change (mine's been red after silver and now pink)
Check out the PNW forum for happenings near you!
Pacific NorthWest Region - Smart Car of America Forums
Suze
PS - on the transparent roof .... living in the northwest, I wouldn't have it any other way. So many gray, rainy days - I say let the sun shine in!