Best Buy via eBay offers the APC 650VA 7-Outlet UPS Battery Backup for $34.99 with free shipping. (Office Depot charges the same.) That's $10 under our September mention and the lowest price we've seen. (It's also the best deal now by $23.) It features a 490-joule rating, five outlets with battery backup, two surge-protected outlets, USB, and alarms.

Update: It's now sold out at Best Buy via eBay; however, Office Depot still offers it for the same price.