The Target in Wylie has an amazing Starbuck area with LOTS of seating around the corner. It’s smoke free and might be an OK place to meet. It could seat 70 people I think — no joke! You just have to walk around the corner to the back where there is a long strip of tables and chairs. Jeff and I had coffee there this morning and checked it out — great seating and very quiet!
Here are directions: http://www.mystore411.com/store/view/33097/Starbucks-Wylie
Here are photos to give you a feel for the place.