The reason its been hard to find one in the retail channel is because they were recalled for a sataII 2 issue. You should really wait to get the ones that will be comming out in the next few weeks. They need to have the marking or indication that they are B3 stepping. As thats the corrected chipset.
I like gigabyte also. EVGA is also good but seems to be a bit more costly.
I wouldn't get the open box if you can wait. as they are the ucorrected versions of the chipset.
If you cant wait and you wont use the bad sataII channel well then its up to you.