Cute hen starlover21! Love the color!
Yes, silkies and EE's will get along. As long as there is food, water and a reasonable amount of space, your coop doesn't need to be huge. You may want to provide some sort of treat designed to give them something to do as boredom and overcrowding are too main causes of picking and, in extreme cases, cannibalism.
The thing about chicks is that if you still have to provide heat anyways, you might as well get day olds. You will know how they were handled and cared for, and have the best chances of obtaining your desired breed, though as both your choices are popular ones you shouldn't find any shortage. It's not really hard- might as get off on the right foot. That said, if you can find some healthy older birds that were handled as chicks, it's instant chickens. I for one love the little ones but of course you are better assured as to color and sex if you go for older birds. And some chicks just won't make it. A bit of sugar or molasses in the water helps, though. Mypetchicken.com has free e-books on chick/chicken care.
2 EE's and one silkie- i wouldn't do it. at least two silkies is a good idea, as they will form a sub flock and you never want one really 'weird' chicken (from the normal ones point of view) by itself.
It would appear that Bedazzle is a very pretty EE.