Dell Home offers the Dell Active Stylus for Venue Pro, model no. 55N1N, for $34.99. Coupon code "QG3G$33HH3QP0?" cuts the price to $29.74. With free shipping, that's the lowest total price we could find by $2. Features include a 1mm tip, hover sensing, and two built-in side buttons.
Of note, this item may take three to five weeks to ship.