Obsessable's week of giveaways ends tonight at midnight, but we're giving away one more set of prizes. An Otterbox case for the iPhone 3G (see reviews here and here) and another for the BlackBerry Bold. You most likely only have one or the other of these two devices, but maybe you know someone else you can give one or both away to as a gift. The contest is open to U.S. residents 18 and older and ends Monday night at midnight. The entry form is below.

Here's a quick review of all the prizes still up for grabs before midnight tonight: We're giving away the review unit headphones featured earlier this week in our Obsessable review of the Acoustic Research ARW200 USB 5.1 surround sound headphones. We're also giving away the ooma Hub and ooma Scout featured in our ooma review from Monday. Enter here for your chance to win. Also, we have one more Obsessable-engraved iPhone Element Liquid Gaming Case left to giveaway. Congratulations to Jason with entry #7, Bill Weakley with entry #24, Andrew Mager with entry #42, and Jen Madura with entry #19 for winning the first four of five daily case giveaways. We'll be contacting you all via email after the contest completes to arrange shipment.

And don't forget you can show us your gear in our Obsessable Flickr pool for a chance to have your gear featured on the site and win an Obsessable t-shirt.