Which Air Compressor should I buy?

I am buying an Air Compressor and I definately want one that can be moved so I have been checking out the 30 Gallon range units.
Which one should I buy?
Central Pneumatic (HF) http://www.harborfreight.com/air-to...-cast-iron-vertical-air-compressor-68127.html
OR
Campbell Hausfeld http://www.tractorsupply.com/campbe...n-belt-drive-cast-iron-air-compressor-1013313

I am heavily leaning toward the Campbell Hausfeld and I can get it for $369.99, Would the Max.135psi VS Max. 150psi be a big deal? The Harbor Freight one is 150 max...