For a basket and lowriders, I'd get a Tubus Grand Expedition. It's expensive, but it's basically 2 racks in one. Being all one piece and attached to 5 points on the fork, it will be rugged, rattle-free, and relatively lightweight for it's cargo capacity. I think normally they go for $180 but I have seen them for $135, so shop around if you're on a budget.
