Bi-stretch twill seamed pant: these are made from the same polyester, rayon, and spandex blend as the pants I purchased. However, I think they have a slightly higher waist and the leg-opening is much straighter. They come in the pictured "cool taupe" and 7 other colors. Originally $79, they are on sale for $26.24. Find all the colors and a variety of fits and lengths (regular, petite, woman, long) here.
Cable-knit turtleneck sweater: if you like the limited (light green, red, an orange-red, and the pictured pink) that Talbots has left, this turtleneck sweater might be a rather inexpensive way to complement a full dark suit. Made entirely from cotton, it is vegan. Originally $59, on sale for $33.74. Find the sweater in a variety of fits here.
Jewel-neck cardigan : made from a blend of cotton, nylon, and spandex, this cardigan would look nice over a collared shirt paired with slacks, or with a matching cami (find some on sale here). It is available in four rather neutral colors, including the pictured "pine cone." Originally $59, on sale for $29.99. Find it here in misses and petite sizes. And for a similar cardigan, but with a cable-knit and three-quarter length sleeves, see here.