Why have a teacher desk? Put your teacher supplies are on a shelf behind your small group area. It eliminates the problem of a messy desktop because you need the table for group time and you can easily see and reach all your supplies.
Tunstall's Teaching Tidbits: classroom pictures-------I LOVE this and want this for my future classroom sans the filing cabinets. (Filing cabinets are just another way for me to not be organized and I can't have that.