For all the bodybuilders out there, help me out. I need to get the following new equipment: Barbell

Barbell Weight Set

Flat/Incline Adjustable Bench


So Im wondering are there any places in Los Angeles that would be great for buying this kind of equipment? Especially since I've been using dumbbells in 10, 12, 15, 20 lbs for more than a year and haven't seen improvement..

Thank you all for your help