I bought a CAP set for pretty cheap back in the day and it uses standard 1" weights. IIRC it was around $50 for both handles, collars, and around 50lbs of weight. I've added more weights with the cheapest 1" plates they sell at Wal-mart. I've used around 75-80 on the handles before and they hold up just fine for at-home accessory work or conditioning. The only problem with mine is that I wish the handles were a bit longer so I don't have to use the larger 25lb plates which make it a little cumbersome.
Just make sure to get some good collars on there, you don't want the plates flying off when you're doing swings or snatches.