Ok so I am looking at either a wall wart at 12V 4.5A ($17)
http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=120-1076


or
Power Supply 13.8 V 5A ($30)
http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=120-534


What do you guys think is the best solution for everyday use, like really everyday when I turn on my tv to watch the news and ESPN kinda thing?