Best Buy via eBay offers the Logitech M510 Cordless Optical Mouse in Light Silver, model no. 910-001822, for $17.99 with free shipping. That's $2 under our August mention and tied as the lowest total price we've seen. (It's a current low by $12.) This wireless mouse features a USB nano-receiver and ambidextrous, ergonomic design. Two AA batteries are included.
Best Buy via eBay offers the Logitech TK820 Wireless All-In-One Keyboard in Black, model no. 920-005108, for $69.99 with free shipping. That's the lowest total price we could find by $10. It features a built-in touchpad.
Accessory Genie via eBay offers the Gogroove SonaVerse Color-Changing LED Desktop Speakers in Grey for $14.99 with free shipping. That's the lowest total price we could find by $5. These 6-watt speakers feature a frequency response of 250Hz to 20kHz, 3-foot USB cable length, and a 3.5mm audio output cable.
Dream-Seller via eBay offers the X-Star 27" LED-Backlit LCD Monitor, model no. DP2710, for $279 with free shipping. That's the lowest total price we could find by $50, although we saw it for $10 less in September. Features include a 2560x1440 native resolution, LED backlight, and speakers.