While you guys bash him, I'm going to give him a high five. I really like the concept, although the prize is kinda lame, especially the "used" part of it. The concept in general is very smart.
Here's some quick advice for ya though. I know it's a small idea and site, and you may have a very limited budget and all, but take these suggestions seriously and you may be onto something very lucrative and profitable here.
1- Change the site from a flimsy blog to a real site. If you can get something done in ajax so that it updates in real time, that would be great, but it may be more of an eye candy or vanity approach, so even so, just get a real site and ditch the blog for it.
2- Make it very easy to understand and user friendly. No one wants to sit there reading your life story on this and that. Keep it short, simple, and straight to the point so people "get it" right away and don't have to look around for more information explaining what it is that you are trying to accomplish.
3- When you have a full site made for this, get the word out and develop yourself as a middleman or marketplace rather than just some desperate for traffic kid looking to give away his old piece of hardware in exchange for some traffic.
4- Offer better prizes. Anyone can walk into a BJ's Wholesale or Costco and buy something for way cheap, but not used at all. Don't undersell yourself either. Your prize is worth way more as a brand new piece of hardware for the amount of traffic you are asking for, so you're not getting the better end of the deal here. Usually when offering some type of offline tangible prize, you're supposed to come up with 2x-3x what it's worth in the form of what you are getting for it. So figure out what type of traffic you want, and how much of it you want, and make sure the retail value is 2x-3x in traffic dollars what you are getting for your prize.
5- After it's a site, allow other people to offer up prizes from a list you make. So if you are going to some liquidator to buy prizes, gather up a nice list of potential prizes, factor in the retail value and shipping costs (flat rate it), and use that as a bartering strategy with people who have something you need and want your prize instead of paying for it. You may also be able to allow people to use your platform as a way to run their own prizes for traffic or whatever they want to give for it, but always make sure you get a cut from one side, and make sure that cut is not money but something like traffic or something of value that you can use for your projects or to make money with.