generally corsair is the best... although kingston is nice as well if you want to budget. Buying RAM is pretty difficult since there are a lot of specs involved although generally if you go with a good company, you will get RAM with good performance.
8GB of 1600MHz is the sweet spot for most set-ups..
Kits from Corsair,Gskill,and Kingston are very good.
The height of the ram will be a non-factor since you've chosen the H80.
Vengeance kits in regular and LP(low profile) = identical performance wise http://www.newegg.com/Product/Productcompare.aspx?Submi...