Sorry lol I though I had explained rooing right after in my post but I guess I wasn't clear. As to your recent questions I agree with everything Yogiwick wrote in her above post. Make sure your fencing is adequate- tight page wire and watch your gates. Our lambs would squeeze threw the little area where the hinges attached a gate to the post and the larger holed page wire. We have pieces of page wire we have to tie over our gates when they're little.
Another thing to plan is a good worming program and make sure you rotate wormers. You should feed a mineral specifically designed for sheep- sheep can't handle large amount of copper which are usually present in other livestock mineral. If you plan on using the wool try to find an area to pen your lambs with little brush. Burs, twigs and bits of hay can be the devil to pick out!
Theres lots you can do with the wool. Shetland sheep wool is prized for knitting and felting. A local artist in my province does some amazing things with her wool- Cloverleaf Art and Fibre: Shetland Sheep
Some of her pieces-