Conundrum One: The Nursery

The first poll for your valued opinions comes in many parts:
I have some, what I think, are good ideas for the nursery. First, the room is already a nice sage green hue, so I've checked "find wall color" off my mental list. At a recent wedding (this is what we do now at wedding receptions, I guess), H and I found some bedding that I enjoy, and I *think* is "gender neutral." But you go ahead and judge for yourself.

Birds, fitting for a baby with the moniker "Vulture," no?

I would most likely get both birds and grey stripes for sheets. H and Jan told me that the pretty quilt is unnecessary because babies do not sleep with quilts, so I will most likely not be purchasing that.
Questions:
1. Do you think the yellow is okay if we have a boy?
2. Do you think yellow with the green walls will look alright if there are white curtains (which conveniently, have tree branches and birds on them)?

OR do you think we would be better suited to find something green, because as I was looking up the photo of the bird sheets and I came across this and I sure like it. Which is greater? Birds or xoxo?

Boys like hugs and kisses before they snuggle to sleep, yes?

 Next subject: A crib. Now, I sure like the grey crib that is pictured with the bird sheets (if you're on the actual site.) There are not a lot of grey crib options, but I have found a few. Most of them are in the higher price range and I'm resistant to go that route. There is a nice looking grey crib that is also a good price, but it is online only. I am nervous to buy a crib that I have never seen in person, therefore can not judge the quality. Has anyone purchased a crib online without seeing it/would you do such a thing? Am I being too paranoid?

Said online-only grey crib. 

Last question today. Many of the cribs we saw when we went on our first "baby buying adventure" (a terrible name considering we actually bought nothing) were convertible from crib, to toddler bed to full size bed. This seems awfully appealing to me, outside the fact that they are roughly triple the price. However, it makes sense to perhaps buy a nicer piece of furniture that you will be able to keep and will grow with the child as opposed to a crib/toddler bed that they will sleep in for, what, 5 years? (I guessed, how long are kids in toddler beds?) Second however, will that nice piece of furniture still be nice by the time it becomes a full-sized bed? Or will the baby claw and scratch and bite at it so it is perhaps ready to be recycled by the time that baby is ready to sleep in a full size? 

This eventually becomes a toddler bed, daybed OR a full-size bed. Fancy.

So the question is: Crib-toddler bed or crib-toddler bed- full-sized bed? Thoughts?