TGIF Southpaw! Missed you. I have three favorite shops for whites and cream tone-on-tone.
Martins fabrics in Bedford, NH - no web sales but I'll be going there soon and I could pick something up for you
Pine tree Quilt Shop in Salem, NH
Bits N Pieces Quilt Shop in Pelham,NH
And, like someone else mentioned, there is
http://www.quiltshops.com
Hope your days are better at work. Just a few more weeks.