I've kicked around having the main colors be gray and yellow, but questioned whether that was too girly. I also like gray and green, which seems a bit more boy-ish. Recently I found this bedding (online) that I think will work well with what I have in mind.
|Skip Hop Mod Dot|
I will be able to highlight the gray, yellow, and green in other aspects of the room. I already have gray curtains. I feel like this will grow with him for the next few years.
They have this at Target, Buy Buy Baby, and I even found the set (new) on Ebay for $140 so I think it's doable.
They also have this set, which is pared down (no bumper) BUT I don't want a brown crib skirt. Which is unfortunate, because I really prefer the price of this one ($120). The alternative is to buy the sheet separately and have to find a solid crib skirt in either gray or green. I could definitely do without the bumper and even the blanket.
Some other inspiration:
Colors & poms