Tanga offers the refurbished Apple iPad 2 16GB WiFi Tablet Black, model no. MC769LL/A, for $94.99 with free shipping. That's $30 under last month's refurb mention and the lowest total price we've seen. (It's also $20 below the best price we could find for a refurb today.)
A 90-day warranty applies, but it's unclear who backs it.