My local PF only went up to 65lbs dumbells. Golds has 120lbs. . There is also no straight bar for pullups. It may be different per PF, that was my experience.
Every PF I have been to has 75s. As for the bar for pull ups there are several pullup grips available on the TRX (I believe that what its called) and if not put your weight on the lat pulldown machine add a straight bar and pull "up" to your hearts content. If you really want to do something you will find a way. Don't rely on the tool as much as the action.