help. case goes with this fan? 80 x 80. or 120 x 120

[prodigio2k]

http://www.newegg.com/app/viewProductDesc.asp?description=11-105-113&catalog=23&manufactory=BROWSE

http://www.newegg.com/app/viewProductDesc.asp?description=11-998-121&catalog=23&manufactory=BROWSE

 

[Praetor]

The case says it takes two 80mm fans.