You sure you just wanna go out and buy all this stuff..I dont know what would be cheaper a membership or this stuff. The reason why I dont see much use out of it is beacuse you can easily just sit on a bench and do it or stand up and do curls, although if you get an adjustable bench like what you were looking at you can use it the same way just prop it to the right angle and rest one arm on that as you curl, make sense? I woudlnt go buy a whole machine just for biceps because biceps also get built through compound excerises like the bench and deadlifts. I would rather grab a membership though incase you do need that for an exercise, those are quite spendy