So far I've replaced the waterpump (old one looked fine), checked the belt, topped off coolant, checked thermostat(even tried running with it removed) and I'm still not getting any circulation. Radatior is new and cold to the touch, hoses are all cold and the temp gauge shows it overheating everytime(verified with laser thermostat).

The car didn't start overheating until i added some coolant to the system. It was running fine up until that point. From then on it would overheat, if I drove it long enough it would appear that the coolant would circulate intermitantly I'd be driving with the guage way above 175 then all of a sudden it would drop to 175. Unsure what else I can try before throwing more money at the problem. I know it could be the head gasket, anyone know of anything else I could try?