B&H Photo Video offers the APC 425VA UPS Battery Backup & Surge Protector for $44.99. Clip the 11% off coupon to cut it to $39.99. (Newegg and Amazon charge the same via on-page discounts.) With free shipping, that's the lowest price we could find by $7. It features six outlets and keyhole sockets.
Update: The price has increased at B&H Photo Video and Amazon; however, Newegg still offers it for $39.99 with free shipping via coupon code "APC425BEM".