I started SS Saturday Night, and had the typical newbie problem lifting the bar for the press without losing form. I was able to find a 20lb bar (which was too easy), but the gym does not have any other bar of weight besides the standard. I suspect this may hinder my ability to do the bench press next time I go.
I also am still too heavy to pull myself up with pullups/chinups.
What would you suggest for exercises to strengthen my arms enough to begin working on the 45lb bar?
You may need to use dumbbells until you're strong enough. You'll get there pretty quickly though as 45lbs isn't that much.